Exposure
ID
GRAVI.2025-04-24T04:25:54.989_1
Header ID
GRAVI.2025-04-24T04:25:54.989
Date updated
2025-04-24 04:35:38 UTC+0000
Release date
2026-04-24 04:35:38 UTC+0000
UTC Start
2025-04-24 04:25:54.989
UTC End
2025-04-24 04:26:14.189
MJD Start
60789.18466422
MJD End
60789.18488644223
Exposure time (s)
19.2
Validation level
1
Tau 0: Coherence time (s)
0.006947999999999999
Ambient temperature (°C)
13.49
Seeing (arcsec)
0.665
Observation
ID
66953
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
49775
Name
HD_100453_B
RA
173.269065
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 90.3350 90.3290 140.7000 140.9000
A0-J2 123.0400 122.9840 122.0000 122.2000
A0-K0 111.5040 111.3990 101.8230 101.9700
G1-J2 47.3190 47.2620 84.4000 84.5000
G1-K0 70.0950 70.0230 47.8200 47.9030
J2-K0 42.7150 42.7110 6.5210 6.6040
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 60789.18466422
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 100453
HIERARCH ESO INS SOBJ NAME HD_100453_B
RA 173.269065
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 41.0
HIERARCH ESO DET2 SEQ1 DIT 0.3
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 90.335
HIERARCH ESO ISS PBL12 END 90.329
HIERARCH ESO ISS PBLA12 START 140.7
HIERARCH ESO ISS PBLA12 END 140.9
HIERARCH ESO ISS PBL13 START 123.04
HIERARCH ESO ISS PBL13 END 122.984
HIERARCH ESO ISS PBLA13 START 122.0
HIERARCH ESO ISS PBLA13 END 122.2
HIERARCH ESO ISS PBL14 START 111.504
HIERARCH ESO ISS PBL14 END 111.399
HIERARCH ESO ISS PBLA14 START 101.823
HIERARCH ESO ISS PBLA14 END 101.97
HIERARCH ESO ISS PBL23 START 47.319
HIERARCH ESO ISS PBL23 END 47.262
HIERARCH ESO ISS PBLA23 START 84.4
HIERARCH ESO ISS PBLA23 END 84.5
HIERARCH ESO ISS PBL24 START 70.095
HIERARCH ESO ISS PBL24 END 70.023
HIERARCH ESO ISS PBLA24 START 47.82
HIERARCH ESO ISS PBLA24 END 47.903
HIERARCH ESO ISS PBL34 START 42.715
HIERARCH ESO ISS PBL34 END 42.711
HIERARCH ESO ISS PBLA34 START 6.521
HIERARCH ESO ISS PBLA34 END 6.604
HIERARCH ESO ISS AMBI TAU0 START 0.006722
HIERARCH ESO ISS AMBI TAU0 END 0.007174
HIERARCH ESO ISS AMBI TEMP 13.49
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.63
HIERARCH ESO FT ROBJ NAME HD_100453
HIERARCH ESO FT ROBJ ALPHA 113305.576
HIERARCH ESO FT ROBJ DELTA -541928.547