Exposure
ID
GRAVI.2025-10-08T04:30:56.900_1
Header ID
GRAVI.2025-10-08T04:30:56.900
Date updated
2025-10-08 04:45:44 UTC+0000
Release date
2026-10-08 04:45:44 UTC+0000
UTC Start
2025-10-08 04:30:56.900
UTC End
2025-10-08 04:36:56.900
MJD Start
60956.18815857
MJD End
60956.19232523667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.003355
Ambient temperature (°C)
10.26
Seeing (arcsec)
0.885
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 86.0580 85.3300 114.7000 114.9000
A0-J2 127.5380 126.9150 92.6000 92.6000
A0-K0 127.9810 127.9430 72.8080 72.7960
G1-J2 57.7880 57.9400 58.4000 58.5000
G1-K0 85.9510 86.3450 30.8490 31.2760
J2-K0 43.8220 43.7570 353.2490 354.0010
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 60956.18815857
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 86.058
HIERARCH ESO ISS PBL12 END 85.33
HIERARCH ESO ISS PBLA12 START 114.7
HIERARCH ESO ISS PBLA12 END 114.9
HIERARCH ESO ISS PBL13 START 127.538
HIERARCH ESO ISS PBL13 END 126.915
HIERARCH ESO ISS PBLA13 START 92.6
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 127.981
HIERARCH ESO ISS PBL14 END 127.943
HIERARCH ESO ISS PBLA14 START 72.808
HIERARCH ESO ISS PBLA14 END 72.796
HIERARCH ESO ISS PBL23 START 57.788
HIERARCH ESO ISS PBL23 END 57.94
HIERARCH ESO ISS PBLA23 START 58.4
HIERARCH ESO ISS PBLA23 END 58.5
HIERARCH ESO ISS PBL24 START 85.951
HIERARCH ESO ISS PBL24 END 86.345
HIERARCH ESO ISS PBLA24 START 30.849
HIERARCH ESO ISS PBLA24 END 31.276
HIERARCH ESO ISS PBL34 START 43.822
HIERARCH ESO ISS PBL34 END 43.757
HIERARCH ESO ISS PBLA34 START 353.249
HIERARCH ESO ISS PBLA34 END 354.001
HIERARCH ESO ISS AMBI TAU0 START 0.00314
HIERARCH ESO ISS AMBI TAU0 END 0.00357
HIERARCH ESO ISS AMBI TEMP 10.26
HIERARCH ESO ISS AMBI FWHM START 0.88
HIERARCH ESO ISS AMBI FWHM END 0.89