Exposure
ID
GRAVI.2025-04-24T23:46:53.323_1
Header ID
GRAVI.2025-04-24T23:46:53.323
Date updated
2025-04-24 23:55:48 UTC+0000
Release date
2026-04-24 23:55:48 UTC+0000
UTC Start
2025-04-24 23:46:53.323
UTC End
2025-04-24 23:49:33.323
MJD Start
60789.99089494
MJD End
60789.99274679185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0182055
Ambient temperature (°C)
14.16
Seeing (arcsec)
0.575
Observation
ID
66972
Category
science
Program ID
112.25JD.002
Program Title
PINNING DOWN THE ORBIT OF HD 100453 B, A POTENTIAL SPIRAL-ARM-DRIVING COMPANION
Program Type
Monitoring
PI / COI
XIE / CHOQUET / VIGAN / REN / LACOUR / DONG / WAGNER / FANG / GONZALEZ
Target
ID
49789
Name
HD_100453_B
RA
173.269064
DEC
-54.32463
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-COMBINED
Instrument sub-mode
DUAL
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 76.8460 77.1960 86.4000 87.0000
A0-J2 121.0120 121.3100 63.7000 64.4000
A0-K0 126.8620 126.9490 45.6050 46.2350
G1-J2 58.1770 58.1670 33.2000 33.7000
G1-K0 85.0360 84.9970 9.4500 9.8900
J2-K0 39.4480 39.5420 333.0900 333.4100
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 112.25JD.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60789.99089494
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 100453
HIERARCH ESO INS SOBJ NAME HD_100453_B
RA 173.269064
DEC -54.32463
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 176.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 76.846
HIERARCH ESO ISS PBL12 END 77.196
HIERARCH ESO ISS PBLA12 START 86.4
HIERARCH ESO ISS PBLA12 END 87.0
HIERARCH ESO ISS PBL13 START 121.012
HIERARCH ESO ISS PBL13 END 121.31
HIERARCH ESO ISS PBLA13 START 63.7
HIERARCH ESO ISS PBLA13 END 64.4
HIERARCH ESO ISS PBL14 START 126.862
HIERARCH ESO ISS PBL14 END 126.949
HIERARCH ESO ISS PBLA14 START 45.605
HIERARCH ESO ISS PBLA14 END 46.235
HIERARCH ESO ISS PBL23 START 58.177
HIERARCH ESO ISS PBL23 END 58.167
HIERARCH ESO ISS PBLA23 START 33.2
HIERARCH ESO ISS PBLA23 END 33.7
HIERARCH ESO ISS PBL24 START 85.036
HIERARCH ESO ISS PBL24 END 84.997
HIERARCH ESO ISS PBLA24 START 9.45
HIERARCH ESO ISS PBLA24 END 9.89
HIERARCH ESO ISS PBL34 START 39.448
HIERARCH ESO ISS PBL34 END 39.542
HIERARCH ESO ISS PBLA34 START 333.09
HIERARCH ESO ISS PBLA34 END 333.41
HIERARCH ESO ISS AMBI TAU0 START 0.021387
HIERARCH ESO ISS AMBI TAU0 END 0.015024
HIERARCH ESO ISS AMBI TEMP 14.16
HIERARCH ESO ISS AMBI FWHM START 0.51
HIERARCH ESO ISS AMBI FWHM END 0.64
HIERARCH ESO FT ROBJ NAME HD_100453
HIERARCH ESO FT ROBJ ALPHA 113305.576
HIERARCH ESO FT ROBJ DELTA -541928.547