I posted such a question in space.stackexchange, but probably it fits better here, being it a "topocentric problem", although for other planets than Earth; we could call it "eso-astronomy" ;-)

I am trying to figure out how to retrieve the right data from Nasa Horizons to plot sun analemmas as seen from other worlds; I found a query which works fine for Earth, but upon changing the observer location from Earth to other planets, things get weird, and I get wrong curves w.r.t "official" curves (although there is not a single analemma curve for each planet, but different curves for different times).

[This][1] is the query I am using for Earth analemma centered on Greenwich at 12.00:

Result:
[![Greenwich analemma 12:00][2]][2]

Using same coordinates on mars, a longer period, and 1477 minutes as interval (martian day length), I don't get the right plot ([link][3]):

[![Mar analemma 12:00 at "Greenwich" (latitude 51.48)][4]][4]

The right analemma on Mars is this:

[![Mars real analemma][5]][5]

I noticed that Earth analemmas are plotted against Azimuth, but Mars analemmas are plotted against Equation of Time. Why? And how can I do by myself such a plot in Excel?


  [1]: https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%270%27&CENTER=%27coord@399%27&OBJ_DATA=%27yes%27&MAKE_EPHEM=%27yes%27&TABLE_TYPE=%27OBSERVER%27&REF_PLANE=%27ECLIPTIC%27&COORD_TYPE=%27GEODETIC%27&SITE_COORD=%270,51.48,0%27&START_TIME=%272020/8/20%2012:00%27&STOP_TIME=%272021/8/20%2012:00%27&STEP_SIZE=%271d%27&QUANTITIES=%274%27&FIXED_QUANTITIES=%27Custom%27&REF_SYSTEM=%27J2000%27&OUT_UNITS=%27KM-S%27&VECT_TABLE=%273%27&VECT_CORR=%27NONE%27&CAL_FORMAT=%27CAL%27&ANG_FORMAT=%27HMS%27&APPARENT=%27AIRLESS%27&TIME_TYPE=%27UTC%27&TIME_DIGITS=%27MINUTES%27&RANGE_UNITS=%27AU%27&SUPPRESS_RANGE_RATE=%27no%27&SKIP_DAYLT=%27no%27&EXTRA_PREC=%27yes%27&CSV_FORMAT=%27yes%27&VEC_LABELS=%27yes%27&ELM_LABELS=%27yes%27&TP_TYPE=%27ABSOLUTE%27&R_T_S_ONLY=%27NO%27&CA_TABLE_TYPE=%27STANDARD%27
  [2]: https://i.sstatic.net/unSvO.png
  [3]: https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%270%27&CENTER=%27coord@499%27&OBJ_DATA=%27yes%27&MAKE_EPHEM=%27yes%27&TABLE_TYPE=%27OBSERVER%27&REF_PLANE=%27ECLIPTIC%27&COORD_TYPE=%27GEODETIC%27&SITE_COORD=%270,51.48,0%27&START_TIME=%272020/8/20%2012:00%27&STOP_TIME=%272022/8/20%2012:00%27&STEP_SIZE=%271477m%27&QUANTITIES=%274%27&FIXED_QUANTITIES=%27Custom%27&REF_SYSTEM=%27J2000%27&OUT_UNITS=%27KM-S%27&VECT_TABLE=%273%27&VECT_CORR=%27NONE%27&CAL_FORMAT=%27CAL%27&ANG_FORMAT=%27HMS%27&APPARENT=%27AIRLESS%27&TIME_TYPE=%27UTC%27&TIME_DIGITS=%27MINUTES%27&RANGE_UNITS=%27AU%27&SUPPRESS_RANGE_RATE=%27no%27&SKIP_DAYLT=%27no%27&EXTRA_PREC=%27yes%27&CSV_FORMAT=%27yes%27&VEC_LABELS=%27yes%27&ELM_LABELS=%27yes%27&TP_TYPE=%27ABSOLUTE%27&R_T_S_ONLY=%27NO%27&CA_TABLE_TYPE=%27STANDARD%27
  [4]: https://i.sstatic.net/cOLCK.png
  [5]: https://i.sstatic.net/37VN9.png