Possible bug in ASCOM.Astrometry.AstroUtils.AstroUtils.EventTimes method

[emifdez]

I found a bug in ASCOM.Astrometry.AstroUtils.AstroUtils.EventTimes method. It doesn't return sunrise time events for latitude lat = 26.695512 and longitude lon = 100.03105 for the date of December 14, 2019 . I could observe that changed 1% latitude works correctly. It works if you change the time zone. I think it fails if the time is too close or is equal to 0:00. Attached code example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using ASCOM;

namespace testAscomSunsetRise
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");
            ASCOM.Astrometry.Transform.Transform apTransform = new ASCOM.Astrometry.Transform.Transform();
            ASCOM.Astrometry.NOVAS.NOVAS31 apNOVAS = new ASCOM.Astrometry.NOVAS.NOVAS31();
            ASCOM.Astrometry.AstroUtils.AstroUtils apUtil = new ASCOM.Astrometry.AstroUtils.AstroUtils();
            System.Collections.ArrayList astroNight = new System.Collections.ArrayList();
            System.Collections.ArrayList civilNight = new System.Collections.ArrayList();
            System.Collections.ArrayList sunRiseSet = new System.Collections.ArrayList();
            DateTime lastUpdate = DateTime.UtcNow;
            double lat = 26.695512;
            double lon = 100.03105;
            civilNight = apUtil.EventTimes(ASCOM.Astrometry.EventType.CivilTwilight, lastUpdate.Day, lastUpdate.Month, lastUpdate.Year, lat, lon, 0);
            astroNight = apUtil.EventTimes(ASCOM.Astrometry.EventType.AstronomicalTwilight, lastUpdate.Day, lastUpdate.Month, lastUpdate.Year, lat, lon, 0);
            sunRiseSet = apUtil.EventTimes(ASCOM.Astrometry.EventType.SunRiseSunset, lastUpdate.Day, lastUpdate.Month, lastUpdate.Year, lat, lon, 0);
            Console.WriteLine("Latitude: " + lat.ToString());
            Console.WriteLine("Longitude:" + lon.ToString());
            Console.WriteLine("Time" + lastUpdate.ToString());

            Console.WriteLine("sunRiseSet cont :" + sunRiseSet.Count.ToString());
            foreach (var e in sunRiseSet) Console.WriteLine("Array sunRiseSet:" + e.ToString());
            Console.WriteLine("civilNignht cont :" + civilNight.Count.ToString());
            foreach (var e in astroNight) Console.WriteLine("Array astro:" + e.ToString());

            Console.WriteLine("astroNight cont :" + astroNight.Count.ToString());

            DateTime objDateWoHour = lastUpdate.Date;
        }
    }
}

The output of the example with a bug and changing the latitude (1%).

C:\Users\Isilda\source\repos\testAscomSunsetRise\testAscomSunsetRise\bin\x86\Deb
ug>testAscomSunsetRise.exe

> 
> Hello World!
> Latitude: 26,695512
> Longitude:100,03105
> Time14/12/2019 18:07:22
> sunRiseSet cont :4
> Array sunRiseSet:True
> Array sunRiseSet:0
> Array sunRiseSet:1
> Array sunRiseSet:10,4769542132567
> civilNignht cont :5
> Array astro:True
> Array astro:1
> Array astro:1
> Array astro:22,6261952111538
> Array astro:11,8566759109858
> astroNight cont :5

> C:\Users\Isilda\source\repos\testAscomSunsetRise\testAscomSunsetRise\bin\x86\Deb
> ug>testAscomSunsetRise.exe
> Hello World!
> Latitude: 26,96246712
> Longitude:100,03105
> Time14/12/2019 18:14:55
> sunRiseSet cont :5
> Array sunRiseSet:False
> Array sunRiseSet:1
> Array sunRiseSet:1
> Array sunRiseSet:0,00456997991677
> Array sunRiseSet:10,4673235217848
> civilNignht cont :5
> Array astro:True
> Array astro:1
> Array astro:1
> Array astro:22,632481231502
> Array astro:11,8504289094108
> astroNight cont :5

[emifdez]

The method works correctly, it was my mistake, I didn't think there was a day without sunrise, but it depends a lot on when the day starts.

testAscomSunsetRise.exe Hello World! Latitude: 26,695512 Longitude:100,03105 Time:10/12/2019 11:07:55 sunRiseSet cont :5 Array sunRiseSet:True Array sunRiseSet:1 Array sunRiseSet:1 Array sunRiseSet:23,9630359486981 Array sunRiseSet:10,4581370341065 Latitude: 26,695512 Longitude:100,03105 Time:11/12/2019 11:07:55 sunRiseSet cont :5 Array sunRiseSet:True Array sunRiseSet:1 Array sunRiseSet:1 Array sunRiseSet:23,9739061145482 Array sunRiseSet:10,4622385314266 Latitude: 26,695512 Longitude:100,03105 Time:12/12/2019 11:07:55 sunRiseSet cont :5 Array sunRiseSet:True Array sunRiseSet:1 Array sunRiseSet:1 Array sunRiseSet:23,9845795058531 Array sunRiseSet:10,4667449289712 Latitude: 26,695512 Longitude:100,03105 Time:13/12/2019 11:07:55 sunRiseSet cont :5 Array sunRiseSet:True Array sunRiseSet:1 Array sunRiseSet:1 Array sunRiseSet:23,9950463094445 Array sunRiseSet:10,4716517522506 Latitude: 26,695512 Longitude:100,03105 Time:14/12/2019 11:07:55 sunRiseSet cont :4 Array sunRiseSet:True Array sunRiseSet:0 Array sunRiseSet:1 Array sunRiseSet:10,4769542132567 Latitude: 26,695512 Longitude:100,03105 Time:15/12/2019 11:07:55 sunRiseSet cont :5 Array sunRiseSet:False Array sunRiseSet:1 Array sunRiseSet:1 Array sunRiseSet:0,00526805624205551 Array sunRiseSet:10,4826471728335

[Peter-Simpson]

Hi, emifdez,

Yes, we live in a strange world, where some latitudes have days without a sunrise or sunset. I don't know if you saw this example in the ASCOM Developer help : Almanac Example.

The example output for 10th March shows the phenomenon you have run into where that day has no sun rise.

I'm going to close this because it's not an ASCOM bug but a "feature" of our world!

Regards, Peter

[emifdez]

Hi Peter-Simpson, Thank you very much for the answer and for the example. I think we reopen the issue. I just executed almanac example, I think there is an error the method. It is possible that where the sunrise event does not occur (you can see it for the Lijiang observatory in time zone UT, TZ=0, Year = 2020, Latitude = 26.695512, Longitude = 100.03105, date = Dec, 13th 2020). That is correct (when sunrise is late and goes from 23:59 to 00:00 (two days later)), but there must be another day where there are two sunrises. These two sunrises would occur on February 10, 2020, instead just write a single time (first sunrise would be around 00:00 and the other around 23:59). I edited the next lines: ' Set the year and geographical location for this run Const Year As Integer = 2020 Const Latitude As Double = 26.695512 ' Positive to the North Const Longitude As Double = 100.03105 ' Positive to the East Const TimeZone As Double = 0' Positive to the East

And I set the EventType ' Set the event for which the Almanac is required: Sunrise/set, Moonrise/set, Civil, Nautical, Amateur Astronomical or Astronomical twilight ' or planet rise/set Const TypeOfEvent As EventType = EventType.SunRiseSunset I attached the log text at the bottom. I programing a test (similar to the first but I have executed from Feb 8th to Feb 15th of 2020). The timespan between sunrises on 9th and 10th is more than 47 hours, That is not possible at Lijiang Observatory. If the time zone es 8, the timespan between adjacent ssunrises is normal (about 24hours).

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using ASCOM;

namespace testAscomSunsetRise
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");
            ASCOM.Astrometry.AstroUtils.AstroUtils apUtil = new ASCOM.Astrometry.AstroUtils.AstroUtils();
            System.Collections.ArrayList sunRiseSet = new System.Collections.ArrayList();
            DateTime lastUpdate = new DateTime(2020, 2, 8, 0, 0, 0, DateTimeKind.Utc);
            double lat = 26.695512;
            double lon = 100.03105;
            int Nrises = 0, Nsets = 0;
            DateTime lastSunRise = lastUpdate;
            DateTime lastSunSet = lastUpdate;
            Console.WriteLine("Latitude: " + lat.ToString());
            Console.WriteLine("Longitude:" + lon.ToString());
            for (int i = 0; i < 8; i++)
            {
                Console.WriteLine("Day "+ i.ToString()+" Time:" + lastUpdate.ToString());
                sunRiseSet = apUtil.EventTimes(ASCOM.Astrometry.EventType.SunRiseSunset, lastUpdate.Day, lastUpdate.Month, lastUpdate.Year, lat, lon, 0);
                Console.WriteLine("sunRiseSet cont :" + sunRiseSet.Count.ToString());
                int h = 0;
                foreach (var e in sunRiseSet) {

                    Console.WriteLine("  Array sunRiseSet[" + h.ToString()+ "]= "+e.ToString());
                    h++;
                }
                Nrises = (int)sunRiseSet[1];
                Nsets = (int)sunRiseSet[2];
                Console.Write("Daylight: " + sunRiseSet[0].ToString());
                Console.Write(". Number of sunrises: " + Nrises);
                Console.WriteLine(". Number of sunsets: " + Nsets);

                for (int j = 0; j < Nrises; j++) {
                    //SunRise
                    Console.WriteLine("Sunrise no " + j.ToString() + ": "+ ((double)sunRiseSet[3 + j]).ToString()+"   ");

                }
                for (int j = 0; j < Nsets; j++)
                {
                    //sunSet 
                    Console.WriteLine("SunSet no " + j.ToString() + ": "+ ((double)sunRiseSet[3+Nrises + j]).ToString()+"   ");
                }
                lastUpdate = lastUpdate.AddDays(1);
                Console.ReadKey();
            }

        }
    }
}

The output:

Hello World! Latitude: 26,695512 Longitude:100,03105 Day 0 Time:08/02/2020 0:00:00 sunRiseSet cont :5 Array sunRiseSet[0]= False Array sunRiseSet[1]= 1 Array sunRiseSet[2]= 1 Array sunRiseSet[3]= 0,0258138171884994 Array sunRiseSet[4]= 11,1129847305732 Daylight: False. Number of sunrises: 1. Number of sunsets: 1 Sunrise no 0: 0,0258138171884994 SunSet no 0: 11,1129847305732 Day 1 Time:09/02/2020 0:00:00 sunRiseSet cont :5 Array sunRiseSet[0]= False Array sunRiseSet[1]= 1 Array sunRiseSet[2]= 1 Array sunRiseSet[3]= 0,0152897281087689 Array sunRiseSet[4]= 11,1250268265302 Daylight: False. Number of sunrises: 1. Number of sunsets: 1 Sunrise no 0: 0,0152897281087689 SunSet no 0: 11,1250268265302 Day 2 Time:10/02/2020 0:00:00 sunRiseSet cont :5 Array sunRiseSet[0]= False Array sunRiseSet[1]= 1 Array sunRiseSet[2]= 1 > Array sunRiseSet[3]= 0,00443739215988259 Array sunRiseSet[4]= 11,13696181783 Daylight: False. Number of sunrises: 1. Number of sunsets: 1 Sunrise no 0: 0,00443739215988259 SunSet no 0: 11,13696181783 Day 3 Time:11/02/2020 0:00:00 sunRiseSet cont :5 Array sunRiseSet[0]= True Array sunRiseSet[1]= 1 Array sunRiseSet[2]= 1 > Array sunRiseSet[3]= 23,9817013329398 Array sunRiseSet[4]= 11,1487891795495 Daylight: True. Number of sunrises: 1. Number of sunsets: 1 Sunrise no 0: 23,9817013329398 SunSet no 0: 11,1487891795495 Day 4 Time:12/02/2020 0:00:00 sunRiseSet cont :5 Array sunRiseSet[0]= True Array sunRiseSet[1]= 1 Array sunRiseSet[2]= 1 Array sunRiseSet[3]= 23,9698557427678 Array sunRiseSet[4]= 11,1605086423701 Daylight: True. Number of sunrises: 1. Number of sunsets: 1 Sunrise no 0: 23,9698557427678 SunSet no 0: 11,1605086423701 Day 5 Time:13/02/2020 0:00:00 sunRiseSet cont :5 Array sunRiseSet[0]= True Array sunRiseSet[1]= 1 Array sunRiseSet[2]= 1 Array sunRiseSet[3]= 23,9577076991203 Array sunRiseSet[4]= 11,1721199818709 Daylight: True. Number of sunrises: 1. Number of sunsets: 1 Sunrise no 0: 23,9577076991203 SunSet no 0: 11,1721199818709 Day 6 Time:14/02/2020 0:00:00 sunRiseSet cont :5 Array sunRiseSet[0]= True Array sunRiseSet[1]= 1 Array sunRiseSet[2]= 1 Array sunRiseSet[3]= 23,9452645724337 Array sunRiseSet[4]= 11,1836228607075 Daylight: True. Number of sunrises: 1. Number of sunsets: 1 Sunrise no 0: 23,9452645724337 SunSet no 0: 11,1836228607075 Day 7 Time:15/02/2020 0:00:00 sunRiseSet cont :5 Array sunRiseSet[0]= True Array sunRiseSet[1]= 1 Array sunRiseSet[2]= 1 Array sunRiseSet[3]= 23,9325335577893 Array sunRiseSet[4]= 11,1950167579983 Daylight: True. Number of sunrises: 1. Number of sunsets: 1 Sunrise no 0: 23,9325335577893 SunSet no 0: 11,1950167579983

18:15:14.301 Almanac                   Latitude: 26:41:44 N,   Longitude: 100:01:52 E,   Time Zone: 0 hours West of Greenwich,   Year: 2020,   Event: SunRiseSunset
18:15:14.301                           
18:15:14.301 Almanac                          Jan.       Feb.       Mar.       Apr.       May        June       July       Aug.       Sept.      Oct.       Nov.       Dec.  
18:15:14.301 Almanac                   Day Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set
18:15:14.332 Almanac                   01  0008 1038  0005 1102  2343 1121  2310 1137  2241 1153  2226 1209  2230 1217  2245 1207  2300 1140  2313 1106  2330 1037  2352 1026  
18:15:14.363 Almanac                   02  0008 1039  0005 1102  2342 1122  2309 1138  2240 1153  2226 1210  2231 1217  2246 1207  2300 1139  2313 1105  2331 1036  2353 1026  
18:15:14.393 Almanac                   03  0009 1039  0004 1103  2341 1122  2308 1138  2239 1154  2226 1210  2231 1217  2246 1206  2301 1138  2314 1104  2332 1036  2353 1027  
18:15:14.423 Almanac                   04  0009 1040  0004 1104  2340 1123  2306 1139  2239 1154  2226 1210  2232 1217  2247 1205  2301 1137  2314 1103  2332 1035  2354 1027  
18:15:14.453 Almanac                   05  0009 1041  0003 1105  2339 1123  2305 1139  2238 1155  2226 1211  2232 1217  2247 1205  2302 1135  2315 1102  2333 1034  2355 1027  
18:15:14.484 Almanac                   06  0009 1041  0003 1105  2338 1124  2304 1140  2237 1155  2226 1211  2232 1217  2248 1204  2302 1134  2315 1101  2334 1034  2356 1027  
18:15:14.515 Almanac                   07  0010 1042  0002 1106  2337 1125  2303 1140  2237 1156  2226 1212  2233 1217  2248 1203  2302 1133  2316 1100  2334 1033  2356 1027  
18:15:14.545 Almanac                   08  0010 1043  0002 1107  2336 1125  2302 1141  2236 1156  2226 1212  2233 1217  2249 1202  2303 1132  2316 1059  2335 1033  2357 1027  
18:15:14.576 Almanac                   09  0010 1044  0001 1108  2335 1126  2301 1141  2235 1157  2226 1213  2234 1217  2249 1202  2303 1131  2317 1058  2336 1032  2358 1027  
18:15:14.606 Almanac                   10  0010 1044  0000 1108  2334 1126  2300 1142  2235 1157  2226 1213  2234 1217  2250 1201  2304 1130  2317 1057  2336 1032  2358 1028  
18:15:14.638 Almanac                   11  0010 1045  2359 1109  2332 1127  2259 1142  2234 1158  2226 1213  2235 1216  2250 1200  2304 1129  2318 1056  2337 1031  2359 1028  
18:15:14.670 Almanac                   12  0010 1046  2358 1110  2331 1127  2258 1143  2234 1159  2226 1214  2235 1216  2251 1159  2305 1128  2318 1054  2338 1031  2359 1028  
18:15:14.703 Almanac                   13  0010 1047  2357 1110  2330 1128  2257 1143  2233 1159  2226 1214  2236 1216  2251 1158  2305 1126  2319 1053  2339 1030       1029  
18:15:14.735 Almanac                   14  0010 1047  2357 1111  2329 1128  2256 1144  2232 1200  2226 1214  2236 1216  2252 1157  2305 1125  2319 1052  2339 1030  0000 1029  
18:15:14.766 Almanac                   15  0010 1048  2356 1112  2328 1129  2255 1144  2232 1200  2226 1215  2237 1215  2252 1157  2306 1124  2320 1052  2340 1029  0001 1029  
18:15:14.796 Almanac                   16  0010 1049  2355 1112  2327 1129  2254 1145  2231 1201  2226 1215  2237 1215  2253 1156  2306 1123  2320 1051  2341 1029  0001 1030  
18:15:14.827 Almanac                   17  0010 1050  2354 1113  2326 1130  2253 1145  2231 1201  2226 1215  2237 1215  2253 1155  2307 1122  2321 1050  2342 1029  0002 1030  
18:15:14.858 Almanac                   18  0010 1051  2354 1114  2325 1130  2252 1146  2231 1202  2227 1216  2238 1214  2254 1154  2307 1121  2322 1049  2342 1028  0003 1030  
18:15:14.889 Almanac                   19  0009 1051  2353 1114  2324 1131  2251 1146  2230 1202  2227 1216  2238 1214  2254 1153  2308 1120  2322 1048  2343 1028  0003 1031  
18:15:14.921 Almanac                   20  0009 1052  2352 1115  2323 1131  2250 1147  2230 1203  2227 1216  2239 1214  2255 1152  2308 1119  2323 1047  2344 1028  0004 1031  
18:15:14.951 Almanac                   21  0009 1053  2351 1116  2322 1132  2249 1147  2229 1203  2227 1216  2240 1213  2255 1151  2308 1117  2323 1046  2345 1027  0004 1032  
18:15:14.982 Almanac                   22  0009 1054  2350 1116  2321 1132  2249 1148  2229 1204  2228 1216  2240 1213  2255 1150  2309 1116  2324 1045  2345 1027  0005 1032  
18:15:15.013 Almanac                   23  0009 1055  2349 1117  2319 1133  2248 1148  2229 1205  2228 1217  2241 1212  2256 1149  2309 1115  2324 1044  2346 1027  0005 1033  
18:15:15.043 Almanac                   24  0008 1055  2348 1118  2318 1133  2247 1149  2228 1205  2228 1217  2241 1212  2256 1148  2310 1114  2325 1043  2347 1027  0006 1033  
18:15:15.073 Almanac                   25  0008 1056  2347 1118  2317 1134  2246 1149  2228 1206  2228 1217  2242 1211  2257 1147  2310 1113  2326 1042  2348 1027  0006 1034  
18:15:15.105 Almanac                   26  0008 1057  2347 1119  2316 1134  2245 1150  2228 1206  2229 1217  2242 1211  2257 1146  2311 1112  2326 1042  2348 1027  0006 1035  
18:15:15.136 Almanac                   27  0007 1058  2346 1119  2315 1135  2244 1150  2227 1207  2229 1217  2243 1210  2258 1145  2311 1111  2327 1041  2349 1027  0007 1035  
18:15:15.168 Almanac                   28  0007 1058  2345 1120  2314 1135  2243 1151  2227 1207  2229 1217  2243 1210  2258 1144  2312 1110  2328 1040  2350 1026  0007 1036  
18:15:15.199 Almanac                   29  0007 1059  2344 1121  2313 1136  2243 1151  2227 1208  2230 1217  2244 1209  2259 1143  2312 1108  2328 1039  2351 1026  0007 1036  
18:15:15.299 Almanac                   30  0006 1100             2312 1136  2242 1152  2227 1208  2230 1217  2244 1209  2259 1142  2312 1107  2329 1039  2351 1026  0008 1037  
18:15:15.656 Almanac                   31  0006 1101             2311 1137             2226 1209             2245 1208  2259 1141             2330 1038             0008 1038  
18:15:15.656                           
18:15:15.656                               **** Always risen or above the requested level                    ---- Always set or below the requested level
18:15:15.656                                    Spaces indicate no event                                          Multiple events in a day are shown as multiple day lines

18:18:23.471 Almanac                   Latitude: 26:41:44 N,   Longitude: 100:01:52 E,   Time Zone: 8 hours East of Greenwich,   Year: 2020,   Event: SunRiseSunset
18:18:23.471                           
18:18:23.471 Almanac                          Jan.       Feb.       Mar.       Apr.       May        June       July       Aug.       Sept.      Oct.       Nov.       Dec.  
18:18:23.471 Almanac                   Day Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set  Rise  Set
18:18:23.514 Almanac                   01  0808 1838  0805 1902  0744 1921  0711 1937  0642 1953  0626 2009  0630 2017  0645 2007  0659 1940  0712 1906  0730 1837  0751 1826  
18:18:23.543 Almanac                   02  0808 1839  0805 1902  0743 1922  0710 1938  0641 1953  0626 2010  0630 2017  0645 2007  0700 1939  0713 1905  0730 1836  0752 1826  
18:18:23.571 Almanac                   03  0809 1839  0804 1903  0742 1922  0709 1938  0640 1954  0626 2010  0631 2017  0646 2006  0700 1938  0713 1904  0731 1836  0753 1827  
18:18:23.600 Almanac                   04  0809 1840  0804 1904  0741 1923  0708 1939  0639 1954  0626 2010  0631 2017  0646 2005  0701 1937  0714 1903  0732 1835  0753 1827  
18:18:23.629 Almanac                   05  0809 1841  0803 1905  0740 1923  0706 1939  0639 1955  0626 2011  0632 2017  0647 2005  0701 1935  0714 1902  0732 1834  0754 1827  
18:18:23.658 Almanac                   06  0809 1841  0803 1905  0739 1924  0705 1940  0638 1955  0626 2011  0632 2017  0647 2004  0702 1934  0715 1901  0733 1834  0755 1827  
18:18:23.687 Almanac                   07  0810 1842  0802 1906  0738 1925  0704 1940  0637 1956  0626 2012  0632 2017  0648 2003  0702 1933  0715 1900  0734 1833  0756 1827  
18:18:23.715 Almanac                   08  0810 1843  0802 1907  0737 1925  0703 1941  0637 1956  0626 2012  0633 2017  0648 2002  0702 1932  0716 1859  0734 1833  0756 1827  
18:18:23.744 Almanac                   09  0810 1844  0801 1908  0736 1926  0702 1941  0636 1957  0626 2013  0633 2017  0649 2002  0703 1931  0716 1858  0735 1832  0757 1827  
18:18:23.773 Almanac                   10  0810 1844  0800 1908  0735 1926  0701 1942  0635 1957  0626 2013  0634 2017  0649 2001  0703 1930  0717 1857  0736 1832  0758 1828  
18:18:23.802 Almanac                   11  0810 1845  0800 1909  0734 1927  0700 1942  0635 1958  0626 2013  0634 2016  0650 2000  0704 1929  0717 1856  0736 1831  0758 1828  
18:18:23.830 Almanac                   12  0810 1846  0759 1910  0732 1927  0659 1943  0634 1959  0626 2014  0635 2016  0650 1959  0704 1928  0718 1854  0737 1831  0759 1828  
18:18:23.859 Almanac                   13  0810 1847  0758 1910  0731 1928  0658 1943  0634 1959  0626 2014  0635 2016  0651 1958  0705 1926  0718 1853  0738 1830  0800 1829  
18:18:23.888 Almanac                   14  0810 1847  0757 1911  0730 1928  0657 1944  0633 2000  0626 2014  0636 2016  0651 1957  0705 1925  0719 1852  0739 1830  0800 1829  
18:18:23.917 Almanac                   15  0810 1848  0757 1912  0729 1929  0656 1944  0632 2000  0626 2015  0636 2015  0652 1957  0705 1924  0719 1852  0739 1829  0801 1829  
18:18:23.946 Almanac                   16  0810 1849  0756 1912  0728 1929  0655 1945  0632 2001  0626 2015  0637 2015  0652 1956  0706 1923  0720 1851  0740 1829  0801 1830  
18:18:23.974 Almanac                   17  0810 1850  0755 1913  0727 1930  0654 1945  0631 2001  0626 2015  0637 2015  0653 1955  0706 1922  0720 1850  0741 1829  0802 1830  
18:18:24.003 Almanac                   18  0810 1851  0754 1914  0726 1930  0653 1946  0631 2002  0626 2016  0637 2014  0653 1954  0707 1921  0721 1849  0742 1828  0803 1830  
18:18:24.031 Almanac                   19  0809 1851  0754 1914  0725 1931  0652 1946  0631 2002  0627 2016  0638 2014  0654 1953  0707 1920  0722 1848  0742 1828  0803 1831  
18:18:24.061 Almanac                   20  0809 1852  0753 1915  0724 1931  0651 1947  0630 2003  0627 2016  0638 2014  0654 1952  0708 1919  0722 1847  0743 1828  0804 1831  
18:18:24.090 Almanac                   21  0809 1853  0752 1916  0723 1932  0650 1947  0630 2003  0627 2016  0639 2013  0655 1951  0708 1917  0723 1846  0744 1827  0804 1832  
18:18:24.119 Almanac                   22  0809 1854  0751 1916  0722 1932  0649 1948  0629 2004  0627 2016  0640 2013  0655 1950  0708 1916  0723 1845  0745 1827  0805 1832  
18:18:24.148 Almanac                   23  0809 1855  0750 1917  0721 1933  0649 1948  0629 2005  0628 2017  0640 2012  0655 1949  0709 1915  0724 1844  0745 1827  0805 1833  
18:18:24.178 Almanac                   24  0808 1855  0749 1918  0719 1933  0648 1949  0629 2005  0628 2017  0641 2012  0656 1948  0709 1914  0724 1843  0746 1827  0806 1833  
18:18:24.207 Almanac                   25  0808 1856  0748 1918  0718 1934  0647 1949  0628 2006  0628 2017  0641 2011  0656 1947  0710 1913  0725 1842  0747 1827  0806 1834  
18:18:24.235 Almanac                   26  0808 1857  0747 1919  0717 1934  0646 1950  0628 2006  0628 2017  0642 2011  0657 1946  0710 1912  0726 1842  0748 1827  0806 1835  
18:18:24.265 Almanac                   27  0807 1858  0747 1919  0716 1935  0645 1950  0628 2007  0629 2017  0642 2010  0657 1945  0711 1911  0726 1841  0748 1827  0807 1835  
18:18:24.293 Almanac                   28  0807 1858  0746 1920  0715 1935  0644 1951  0627 2007  0629 2017  0643 2010  0658 1944  0711 1910  0727 1840  0749 1826  0807 1836  
18:18:24.322 Almanac                   29  0807 1859  0745 1921  0714 1936  0643 1951  0627 2008  0629 2017  0643 2009  0658 1943  0712 1908  0728 1839  0750 1826  0807 1836  
18:18:24.428 Almanac                   30  0806 1900             0713 1936  0643 1952  0627 2008  0630 2017  0644 2009  0659 1942  0712 1907  0728 1839  0751 1826  0808 1837  
18:18:24.782 Almanac                   31  0806 1901             0712 1937             0627 2009             0644 2008  0659 1941             0729 1838             0808 1838  
18:18:24.782                           
18:18:24.782                               **** Always risen or above the requested level                    ---- Always set or below the requested level
18:18:24.782                                    Spaces indicate no event                                          Multiple events in a day are shown as multiple day lines