Exposure
ID
GRAVI.2023-01-20T03:43:55.750_1
Header ID
GRAVI.2023-01-20T03:43:55.750
Date updated
2023-01-20 03:55:53 UTC+0000
Release date
2024-01-20 03:55:53 UTC+0000
UTC Start
2023-01-20 03:43:55.750
UTC End
2023-01-20 03:47:55.750
MJD Start
59964.15550637
MJD End
59964.1582841478
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.017554
Ambient temperature (°C)
16.45
Seeing (arcsec)
0.735
Observation
ID
53922
Category
science
Program ID
110.23QY.001
Program Title
HIGH-PRECISION MASSES AND DISTANCES OF SPECTROSCOPIC BINARIES WITH INTERFEROMETRY - PART I
Program Type
Normal
PI / COI
GALLENNE/ PIETRZYNSKI/ GIEREN/ KERVELLA/ MÉRAND/ GRACZYK
Target
ID
40086
Name
BD+26_1453
RA
107.396744
DEC
25.72775
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 68.3270 68.3460 272.3000 271.8000
K0-D0 91.7580 92.2090 258.7000 258.3000
K0-J3 42.3060 41.9050 320.7120 320.9180
G2-D0 29.9670 30.2880 226.4000 226.5000
G2-J3 51.2180 51.7480 54.0960 54.0600
D0-J3 81.0170 81.8720 51.2680 51.2870
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 110.23QY.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 59964.15550637
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD54371
HIERARCH ESO INS SOBJ NAME BD+26_1453
RA 107.396744
DEC 25.72775
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 256.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 68.327
HIERARCH ESO ISS PBL12 END 68.346
HIERARCH ESO ISS PBLA12 START 272.3
HIERARCH ESO ISS PBLA12 END 271.8
HIERARCH ESO ISS PBL13 START 91.758
HIERARCH ESO ISS PBL13 END 92.209
HIERARCH ESO ISS PBLA13 START 258.7
HIERARCH ESO ISS PBLA13 END 258.3
HIERARCH ESO ISS PBL14 START 42.306
HIERARCH ESO ISS PBL14 END 41.905
HIERARCH ESO ISS PBLA14 START 320.712
HIERARCH ESO ISS PBLA14 END 320.918
HIERARCH ESO ISS PBL23 START 29.967
HIERARCH ESO ISS PBL23 END 30.288
HIERARCH ESO ISS PBLA23 START 226.4
HIERARCH ESO ISS PBLA23 END 226.5
HIERARCH ESO ISS PBL24 START 51.218
HIERARCH ESO ISS PBL24 END 51.748
HIERARCH ESO ISS PBLA24 START 54.096
HIERARCH ESO ISS PBLA24 END 54.06
HIERARCH ESO ISS PBL34 START 81.017
HIERARCH ESO ISS PBL34 END 81.872
HIERARCH ESO ISS PBLA34 START 51.268
HIERARCH ESO ISS PBLA34 END 51.287
HIERARCH ESO ISS AMBI TAU0 START 0.014533
HIERARCH ESO ISS AMBI TAU0 END 0.020575
HIERARCH ESO ISS AMBI TEMP 16.45
HIERARCH ESO ISS AMBI FWHM START 0.71
HIERARCH ESO ISS AMBI FWHM END 0.76