Exposure
ID
GRAVI.2022-01-25T01:53:17.257_2
Header ID
GRAVI.2022-01-25T01:53:17.257
Date updated
2022-01-25 02:10:47 UTC+0000
Release date
2023-01-25 02:10:47 UTC+0000
UTC Start
2022-01-25 01:53:17.257
UTC End
2022-01-25 01:58:17.257
MJD Start
59604.07867196
MJD End
59604.0821441822
Exposure time (s)
300.0
Validation level
1
Tau 0: Coherence time (s)
0.0062835
Ambient temperature (°C)
14.32
Seeing (arcsec)
0.755
Observation
ID
46631
Category
science
Program ID
106.219S.001
Program Title
ASTROMETRIC PRECISION-WEIGHING A NON-ACCRETING STELLAR-MASS BLACK HOLE
Program Type
Normal
PI / COI
RIVINIUS/ BAADE/ HEIDA/ HADRAVA/ TRISTRAM
Target
ID
35011
Name
LB-1
RA
92.9544833333333
DEC
22.8257461111111
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 38.4880 39.0130 31.9000 32.5000
U1-U3 72.0940 73.2230 40.6000 41.1000
U1-U4 111.7440 113.2300 71.5880 71.2660
U2-U3 34.5570 35.1290 50.4000 50.6000
U2-U4 85.7470 86.3290 88.2610 87.6980
U3-U4 62.1900 62.0390 108.1990 107.6680
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 106.219S.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59604.07867196
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME LB-1
HIERARCH ESO INS SOBJ NAME Sky
RA 92.956439
DEC 22.82573
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 354.0
HIERARCH ESO DET2 SEQ1 DIT 1.0
HIERARCH ESO DET2 NDIT 300
HIERARCH ESO ISS PBL12 START 38.488
HIERARCH ESO ISS PBL12 END 39.013
HIERARCH ESO ISS PBLA12 START 31.9
HIERARCH ESO ISS PBLA12 END 32.5
HIERARCH ESO ISS PBL13 START 72.094
HIERARCH ESO ISS PBL13 END 73.223
HIERARCH ESO ISS PBLA13 START 40.6
HIERARCH ESO ISS PBLA13 END 41.1
HIERARCH ESO ISS PBL14 START 111.744
HIERARCH ESO ISS PBL14 END 113.23
HIERARCH ESO ISS PBLA14 START 71.588
HIERARCH ESO ISS PBLA14 END 71.266
HIERARCH ESO ISS PBL23 START 34.557
HIERARCH ESO ISS PBL23 END 35.129
HIERARCH ESO ISS PBLA23 START 50.4
HIERARCH ESO ISS PBLA23 END 50.6
HIERARCH ESO ISS PBL24 START 85.747
HIERARCH ESO ISS PBL24 END 86.329
HIERARCH ESO ISS PBLA24 START 88.261
HIERARCH ESO ISS PBLA24 END 87.698
HIERARCH ESO ISS PBL34 START 62.19
HIERARCH ESO ISS PBL34 END 62.039
HIERARCH ESO ISS PBLA34 START 108.199
HIERARCH ESO ISS PBLA34 END 107.668
HIERARCH ESO ISS AMBI TAU0 START 0.005404
HIERARCH ESO ISS AMBI TAU0 END 0.007163
HIERARCH ESO ISS AMBI TEMP 14.32
HIERARCH ESO ISS AMBI FWHM START 0.79
HIERARCH ESO ISS AMBI FWHM END 0.72
HIERARCH ESO FT ROBJ NAME LB-1
HIERARCH ESO FT ROBJ ALPHA 061149.076
HIERARCH ESO FT ROBJ DELTA 224932.686