Exposure
ID
GRAVI.2023-01-14T01:30:17.839_1
Header ID
GRAVI.2023-01-14T01:30:17.839
Date updated
2023-01-14 01:41:28 UTC+0000
Release date
2023-01-14 01:41:28 UTC+0000
UTC Start
2023-01-14 01:30:17.839
UTC End
2023-01-14 01:30:27.439
MJD Start
59958.06270647
MJD End
59958.0628175811
Exposure time (s)
9.6
Validation level
1
Tau 0: Coherence time (s)
0.004375
Ambient temperature (°C)
11.27
Seeing (arcsec)
0.85
Observation
ID
53857
Category
science
Program ID
60.A-9801(U)
Program Title
TECHNICAL TIME
Program Type
Normal
PI / COI
OBSERVATORY, P
Target
ID
40041
Name
Nothing
RA
88.791264
DEC
7.40712
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-SPLIT
Instrument sub-mode
DUAL
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 25.0060 25.0010 135.8000 135.8000
A0-D0 26.9870 27.0200 74.3000 74.3000
A0-C1 22.4010 22.4060 115.1340 115.1120
B2-D0 26.6230 26.6370 18.7000 18.8000
B2-C1 8.8700 8.8740 18.6420 18.7140
D0-C1 17.7540 17.7630 198.7220 198.7930
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 60.A-9801(U)
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59958.06270647
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME alf Ori
HIERARCH ESO INS SOBJ NAME Nothing
RA 88.791264
DEC 7.40712
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 32.0
HIERARCH ESO DET2 SEQ1 DIT 0.3
HIERARCH ESO DET2 NDIT 32
HIERARCH ESO ISS PBL12 START 25.006
HIERARCH ESO ISS PBL12 END 25.001
HIERARCH ESO ISS PBLA12 START 135.8
HIERARCH ESO ISS PBLA12 END 135.8
HIERARCH ESO ISS PBL13 START 26.987
HIERARCH ESO ISS PBL13 END 27.02
HIERARCH ESO ISS PBLA13 START 74.3
HIERARCH ESO ISS PBLA13 END 74.3
HIERARCH ESO ISS PBL14 START 22.401
HIERARCH ESO ISS PBL14 END 22.406
HIERARCH ESO ISS PBLA14 START 115.134
HIERARCH ESO ISS PBLA14 END 115.112
HIERARCH ESO ISS PBL23 START 26.623
HIERARCH ESO ISS PBL23 END 26.637
HIERARCH ESO ISS PBLA23 START 18.7
HIERARCH ESO ISS PBLA23 END 18.8
HIERARCH ESO ISS PBL24 START 8.87
HIERARCH ESO ISS PBL24 END 8.874
HIERARCH ESO ISS PBLA24 START 18.642
HIERARCH ESO ISS PBLA24 END 18.714
HIERARCH ESO ISS PBL34 START 17.754
HIERARCH ESO ISS PBL34 END 17.763
HIERARCH ESO ISS PBLA34 START 198.722
HIERARCH ESO ISS PBLA34 END 198.793
HIERARCH ESO ISS AMBI TAU0 START 0.004196
HIERARCH ESO ISS AMBI TAU0 END 0.004554
HIERARCH ESO ISS AMBI TEMP 11.27
HIERARCH ESO ISS AMBI FWHM START 0.88
HIERARCH ESO ISS AMBI FWHM END 0.82
HIERARCH ESO FT ROBJ NAME Betelgeuse
HIERARCH ESO FT ROBJ ALPHA 055510.305
HIERARCH ESO FT ROBJ DELTA 072425.430