Exposure
ID
GRAVI.2025-10-08T04:44:20.935_1
Header ID
GRAVI.2025-10-08T04:44:20.935
Date updated
2025-10-08 04:55:46 UTC+0000
Release date
2026-10-08 04:55:46 UTC+0000
UTC Start
2025-10-08 04:44:20.935
UTC End
2025-10-08 04:50:20.935
MJD Start
60956.19746452
MJD End
60956.20163118667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.00364
Ambient temperature (°C)
10.21
Seeing (arcsec)
0.7949999999999999
Observation
ID
70845
Category
science
Program ID
116.28ZV.001
Program Title
VLTI SURVEY ON GAIA BINARIES: STELLAR EVOLUTION AND BINARY FORMATION AT LOW/HIGH METALLICITY
Program Type
Normal
PI / COI
LU / KRAUS
Target
ID
52565
Name
HD__1957
RA
5.952528
DEC
0.12192
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 84.4500 83.6130 115.2000 115.4000
A0-J2 126.1000 125.2730 92.6000 92.6000
A0-K0 127.7950 127.5690 72.7680 72.7290
G1-J2 58.0730 58.1570 58.6000 58.6000
G1-K0 86.7710 87.1360 31.7290 32.1080
J2-K0 43.6930 43.6440 354.8550 355.6210
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28ZV.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60956.19746452
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 1957
HIERARCH ESO INS SOBJ NAME HD__1957
RA 5.952528
DEC 0.12192
HIERARCH ESO INS SPEC RES HIGH
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 377.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 84.45
HIERARCH ESO ISS PBL12 END 83.613
HIERARCH ESO ISS PBLA12 START 115.2
HIERARCH ESO ISS PBLA12 END 115.4
HIERARCH ESO ISS PBL13 START 126.1
HIERARCH ESO ISS PBL13 END 125.273
HIERARCH ESO ISS PBLA13 START 92.6
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 127.795
HIERARCH ESO ISS PBL14 END 127.569
HIERARCH ESO ISS PBLA14 START 72.768
HIERARCH ESO ISS PBLA14 END 72.729
HIERARCH ESO ISS PBL23 START 58.073
HIERARCH ESO ISS PBL23 END 58.157
HIERARCH ESO ISS PBLA23 START 58.6
HIERARCH ESO ISS PBLA23 END 58.6
HIERARCH ESO ISS PBL24 START 86.771
HIERARCH ESO ISS PBL24 END 87.136
HIERARCH ESO ISS PBLA24 START 31.729
HIERARCH ESO ISS PBLA24 END 32.108
HIERARCH ESO ISS PBL34 START 43.693
HIERARCH ESO ISS PBL34 END 43.644
HIERARCH ESO ISS PBLA34 START 354.855
HIERARCH ESO ISS PBLA34 END 355.621
HIERARCH ESO ISS AMBI TAU0 START 0.003727
HIERARCH ESO ISS AMBI TAU0 END 0.003553
HIERARCH ESO ISS AMBI TEMP 10.21
HIERARCH ESO ISS AMBI FWHM START 0.83
HIERARCH ESO ISS AMBI FWHM END 0.76