Exposure
ID
GRAVI.2025-10-08T04:50:53.951_1
Header ID
GRAVI.2025-10-08T04:50:53.951
Date updated
2025-10-08 05:05:47 UTC+0000
Release date
2026-10-08 05:05:47 UTC+0000
UTC Start
2025-10-08 04:50:53.951
UTC End
2025-10-08 04:56:53.951
MJD Start
60956.20201332
MJD End
60956.206179986664
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0039285
Ambient temperature (°C)
10.19
Seeing (arcsec)
0.77
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 83.5740 82.6840 115.5000 115.8000
A0-J2 125.2340 124.3070 92.6000 92.6000
A0-K0 127.5570 127.2380 72.7270 72.6770
G1-J2 58.1600 58.2110 58.6000 58.6000
G1-K0 87.1520 87.5010 32.1250 32.4810
J2-K0 43.6420 43.6010 355.6550 356.4280
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 60956.20201332
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 83.574
HIERARCH ESO ISS PBL12 END 82.684
HIERARCH ESO ISS PBLA12 START 115.5
HIERARCH ESO ISS PBLA12 END 115.8
HIERARCH ESO ISS PBL13 START 125.234
HIERARCH ESO ISS PBL13 END 124.307
HIERARCH ESO ISS PBLA13 START 92.6
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 127.557
HIERARCH ESO ISS PBL14 END 127.238
HIERARCH ESO ISS PBLA14 START 72.727
HIERARCH ESO ISS PBLA14 END 72.677
HIERARCH ESO ISS PBL23 START 58.16
HIERARCH ESO ISS PBL23 END 58.211
HIERARCH ESO ISS PBLA23 START 58.6
HIERARCH ESO ISS PBLA23 END 58.6
HIERARCH ESO ISS PBL24 START 87.152
HIERARCH ESO ISS PBL24 END 87.501
HIERARCH ESO ISS PBLA24 START 32.125
HIERARCH ESO ISS PBLA24 END 32.481
HIERARCH ESO ISS PBL34 START 43.642
HIERARCH ESO ISS PBL34 END 43.601
HIERARCH ESO ISS PBLA34 START 355.655
HIERARCH ESO ISS PBLA34 END 356.428
HIERARCH ESO ISS AMBI TAU0 START 0.003553
HIERARCH ESO ISS AMBI TAU0 END 0.004304
HIERARCH ESO ISS AMBI TEMP 10.19
HIERARCH ESO ISS AMBI FWHM START 0.76
HIERARCH ESO ISS AMBI FWHM END 0.78