Exposure
ID
GRAVI.2025-04-24T23:35:44.295_1
Header ID
GRAVI.2025-04-24T23:35:44.295
Date updated
2025-04-24 23:45:47 UTC+0000
Release date
2026-04-24 23:45:47 UTC+0000
UTC Start
2025-04-24 23:35:44.295
UTC End
2025-04-24 23:38:24.295
MJD Start
60789.98315156
MJD End
60789.98500341186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.023335
Ambient temperature (°C)
14.37
Seeing (arcsec)
0.605
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 75.4670 75.8310 84.0000 84.6000
A0-J2 119.8360 120.1470 61.2000 61.8000
A0-K0 126.5020 126.5990 43.1680 43.8060
G1-J2 58.2080 58.2010 30.9000 31.5000
G1-K0 85.1660 85.1350 7.7590 8.2000
J2-K0 39.0720 39.1720 331.8720 332.1880
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 60789.98315156
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 75.467
HIERARCH ESO ISS PBL12 END 75.831
HIERARCH ESO ISS PBLA12 START 84.0
HIERARCH ESO ISS PBLA12 END 84.6
HIERARCH ESO ISS PBL13 START 119.836
HIERARCH ESO ISS PBL13 END 120.147
HIERARCH ESO ISS PBLA13 START 61.2
HIERARCH ESO ISS PBLA13 END 61.8
HIERARCH ESO ISS PBL14 START 126.502
HIERARCH ESO ISS PBL14 END 126.599
HIERARCH ESO ISS PBLA14 START 43.168
HIERARCH ESO ISS PBLA14 END 43.806
HIERARCH ESO ISS PBL23 START 58.208
HIERARCH ESO ISS PBL23 END 58.201
HIERARCH ESO ISS PBLA23 START 30.9
HIERARCH ESO ISS PBLA23 END 31.5
HIERARCH ESO ISS PBL24 START 85.166
HIERARCH ESO ISS PBL24 END 85.135
HIERARCH ESO ISS PBLA24 START 7.759
HIERARCH ESO ISS PBLA24 END 8.2
HIERARCH ESO ISS PBL34 START 39.072
HIERARCH ESO ISS PBL34 END 39.172
HIERARCH ESO ISS PBLA34 START 331.872
HIERARCH ESO ISS PBLA34 END 332.188
HIERARCH ESO ISS AMBI TAU0 START 0.02632
HIERARCH ESO ISS AMBI TAU0 END 0.02035
HIERARCH ESO ISS AMBI TEMP 14.37
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.61
HIERARCH ESO FT ROBJ NAME HD_100453
HIERARCH ESO FT ROBJ ALPHA 113305.576
HIERARCH ESO FT ROBJ DELTA -541928.547