Exposure
ID
GRAVI.2025-04-25T00:05:35.371_1
Header ID
GRAVI.2025-04-25T00:05:35.371
Date updated
2025-04-25 00:15:48 UTC+0000
Release date
2026-04-25 00:15:48 UTC+0000
UTC Start
2025-04-25 00:05:35.371
UTC End
2025-04-25 00:08:15.371
MJD Start
60790.00388161
MJD End
60790.005733461854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0190175
Ambient temperature (°C)
13.72
Seeing (arcsec)
0.63
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 79.0360 79.3570 90.2000 90.8000
A0-J2 122.8690 123.1390 67.9000 68.6000
A0-K0 127.3780 127.4450 49.6390 50.2550
G1-J2 58.0890 58.0700 36.8000 37.4000
G1-K0 84.7550 84.7040 12.2830 12.7200
J2-K0 40.0310 40.1160 335.1770 335.5050
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 60790.00388161
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 79.036
HIERARCH ESO ISS PBL12 END 79.357
HIERARCH ESO ISS PBLA12 START 90.2
HIERARCH ESO ISS PBLA12 END 90.8
HIERARCH ESO ISS PBL13 START 122.869
HIERARCH ESO ISS PBL13 END 123.139
HIERARCH ESO ISS PBLA13 START 67.9
HIERARCH ESO ISS PBLA13 END 68.6
HIERARCH ESO ISS PBL14 START 127.378
HIERARCH ESO ISS PBL14 END 127.445
HIERARCH ESO ISS PBLA14 START 49.639
HIERARCH ESO ISS PBLA14 END 50.255
HIERARCH ESO ISS PBL23 START 58.089
HIERARCH ESO ISS PBL23 END 58.07
HIERARCH ESO ISS PBLA23 START 36.8
HIERARCH ESO ISS PBLA23 END 37.4
HIERARCH ESO ISS PBL24 START 84.755
HIERARCH ESO ISS PBL24 END 84.704
HIERARCH ESO ISS PBLA24 START 12.283
HIERARCH ESO ISS PBLA24 END 12.72
HIERARCH ESO ISS PBL34 START 40.031
HIERARCH ESO ISS PBL34 END 40.116
HIERARCH ESO ISS PBLA34 START 335.177
HIERARCH ESO ISS PBLA34 END 335.505
HIERARCH ESO ISS AMBI TAU0 START 0.01602
HIERARCH ESO ISS AMBI TAU0 END 0.022015
HIERARCH ESO ISS AMBI TEMP 13.72
HIERARCH ESO ISS AMBI FWHM START 0.65
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