Exposure
ID
GRAVI.2025-04-24T04:27:24.993_1
Header ID
GRAVI.2025-04-24T04:27:24.993
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 04:27:24.993
UTC End
2025-04-24 04:30:04.993
MJD Start
60789.18570594
MJD End
60789.187557791854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.007529
Ambient temperature (°C)
13.48
Seeing (arcsec)
0.625
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 90.3210 90.2930 141.0000 141.6000
A0-J2 122.9110 122.6590 122.4000 123.1000
A0-K0 111.2660 110.8050 102.1560 102.8060
G1-J2 47.1880 46.9350 84.7000 85.2000
G1-K0 69.9310 69.6130 48.0060 48.3690
J2-K0 42.7050 42.6840 6.7080 7.0750
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 60789.18570594
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 176.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 90.321
HIERARCH ESO ISS PBL12 END 90.293
HIERARCH ESO ISS PBLA12 START 141.0
HIERARCH ESO ISS PBLA12 END 141.6
HIERARCH ESO ISS PBL13 START 122.911
HIERARCH ESO ISS PBL13 END 122.659
HIERARCH ESO ISS PBLA13 START 122.4
HIERARCH ESO ISS PBLA13 END 123.1
HIERARCH ESO ISS PBL14 START 111.266
HIERARCH ESO ISS PBL14 END 110.805
HIERARCH ESO ISS PBLA14 START 102.156
HIERARCH ESO ISS PBLA14 END 102.806
HIERARCH ESO ISS PBL23 START 47.188
HIERARCH ESO ISS PBL23 END 46.935
HIERARCH ESO ISS PBLA23 START 84.7
HIERARCH ESO ISS PBLA23 END 85.2
HIERARCH ESO ISS PBL24 START 69.931
HIERARCH ESO ISS PBL24 END 69.613
HIERARCH ESO ISS PBLA24 START 48.006
HIERARCH ESO ISS PBLA24 END 48.369
HIERARCH ESO ISS PBL34 START 42.705
HIERARCH ESO ISS PBL34 END 42.684
HIERARCH ESO ISS PBLA34 START 6.708
HIERARCH ESO ISS PBLA34 END 7.075
HIERARCH ESO ISS AMBI TAU0 START 0.007451
HIERARCH ESO ISS AMBI TAU0 END 0.007607
HIERARCH ESO ISS AMBI TEMP 13.48
HIERARCH ESO ISS AMBI FWHM START 0.66
HIERARCH ESO ISS AMBI FWHM END 0.59
HIERARCH ESO FT ROBJ NAME HD_100453
HIERARCH ESO FT ROBJ ALPHA 113305.576
HIERARCH ESO FT ROBJ DELTA -541928.547