Timing system & consistency

ericagol / TRAPPIST1_Spitzer

TRAPPIST-1 TTVs and Spitzer photodynamics

MIT License

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Closed ericagol closed 4 years ago

ericagol commented 4 years ago

@educrot

[x] Which timing system do the BJD times use (in Table 2 & 14)? TDB? UTC?
[x] ... different observatories (also space observatories) can use different time standards, BJD_TDB or BJD_UTC. Were the transit times corrected and unified prior the analysis? Is it possible that the presented outliers are related to this fact?

Table 15

ericagol commented 4 years ago

educrot commented 4 years ago

I will submit a pull request with the changes but just to answer your questions:

BJD_TDB timings are used in Table 14 and 2
Indeed the transit times were corrected and unified prior to the analysis. Therefore we do not believe this could be the origin from the presence of outliers

However, for Table 15 I don't know as I did not help filling up this table.

ericagol commented 4 years ago

@educrot Since Table 15 is derived from the transit-timing analysis, then these times use the same system as the observed times (i.e. BJD_TDB).

ericagol commented 4 years ago

@educrot Thanks for your help. I've now changed all instances of JD to BJD_TDB in the text and figure axis labels.