Exposure
ID
GRAVI.2022-12-10T05:23:38.212_1
Header ID
GRAVI.2022-12-10T05:23:38.212
Date updated
2022-12-10 05:35:47 UTC+0000
Release date
2022-12-10 05:23:38 UTC+0000
UTC Start
2022-12-10 05:23:38.212
UTC End
2022-12-10 05:29:38.212
MJD Start
59923.22474782
MJD End
59923.2289144867
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.014402
Ambient temperature (°C)
16.59
Seeing (arcsec)
0.35
Observation
ID
53419
Category
calibrator
Program ID
110.245A.001
Program Title
FEASIBILITY STUDY OF RESOLVING THE NUCLEAR REGIONS OF EHT TARGETS
Program Type
Normal
PI / COI
RAMAKRISHNAN/ TRISTRAM/ KOTILAINEN
Target
ID
39726
Name
BD-22_2490
RA
136.162006
DEC
-22.68318
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 55.2350 55.2450 1.5000 2.4000
U1-U3 98.1820 98.2730 6.5000 7.5000
U1-U4 109.4340 110.3920 31.7840 33.1820
U2-U3 43.4190 43.5190 12.8000 13.9000
U2-U4 67.7360 68.9680 56.0730 57.3650
U3-U4 46.8240 47.8600 95.5680 96.0550
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 110.245A.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 59923.22474782
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME BD-22 2490
HIERARCH ESO INS SOBJ NAME BD-22_2490
RA 136.162006
DEC -22.68318
HIERARCH ESO INS SPEC RES MEDIUM
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 376.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 55.235
HIERARCH ESO ISS PBL12 END 55.245
HIERARCH ESO ISS PBLA12 START 1.5
HIERARCH ESO ISS PBLA12 END 2.4
HIERARCH ESO ISS PBL13 START 98.182
HIERARCH ESO ISS PBL13 END 98.273
HIERARCH ESO ISS PBLA13 START 6.5
HIERARCH ESO ISS PBLA13 END 7.5
HIERARCH ESO ISS PBL14 START 109.434
HIERARCH ESO ISS PBL14 END 110.392
HIERARCH ESO ISS PBLA14 START 31.784
HIERARCH ESO ISS PBLA14 END 33.182
HIERARCH ESO ISS PBL23 START 43.419
HIERARCH ESO ISS PBL23 END 43.519
HIERARCH ESO ISS PBLA23 START 12.8
HIERARCH ESO ISS PBLA23 END 13.9
HIERARCH ESO ISS PBL24 START 67.736
HIERARCH ESO ISS PBL24 END 68.968
HIERARCH ESO ISS PBLA24 START 56.073
HIERARCH ESO ISS PBLA24 END 57.365
HIERARCH ESO ISS PBL34 START 46.824
HIERARCH ESO ISS PBL34 END 47.86
HIERARCH ESO ISS PBLA34 START 95.568
HIERARCH ESO ISS PBLA34 END 96.055
HIERARCH ESO ISS AMBI TAU0 START 0.013053
HIERARCH ESO ISS AMBI TAU0 END 0.015751
HIERARCH ESO ISS AMBI TEMP 16.59
HIERARCH ESO ISS AMBI FWHM START 0.35
HIERARCH ESO ISS AMBI FWHM END 0.35