Exposure
ID
GRAVI.2022-12-10T05:10:08.178_1
Header ID
GRAVI.2022-12-10T05:10:08.178
Date updated
2022-12-10 05:21:15 UTC+0000
Release date
2022-12-10 05:10:08 UTC+0000
UTC Start
2022-12-10 05:10:08.178
UTC End
2022-12-10 05:16:08.178
MJD Start
59923.21537243
MJD End
59923.2195390967
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0113385
Ambient temperature (°C)
16.27
Seeing (arcsec)
0.355
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 55.2290 55.2290 359.5000 0.4000
U1-U3 98.0340 98.0960 4.2000 5.3000
U1-U4 107.4620 108.3730 28.6880 30.1580
U2-U3 43.2320 43.3150 10.3000 11.4000
U2-U4 65.0840 66.3300 53.1380 54.5450
U3-U4 44.5180 45.6150 94.5160 95.0120
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 59923.21537243
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 55.229
HIERARCH ESO ISS PBL12 END 55.229
HIERARCH ESO ISS PBLA12 START 359.5
HIERARCH ESO ISS PBLA12 END 0.4
HIERARCH ESO ISS PBL13 START 98.034
HIERARCH ESO ISS PBL13 END 98.096
HIERARCH ESO ISS PBLA13 START 4.2
HIERARCH ESO ISS PBLA13 END 5.3
HIERARCH ESO ISS PBL14 START 107.462
HIERARCH ESO ISS PBL14 END 108.373
HIERARCH ESO ISS PBLA14 START 28.688
HIERARCH ESO ISS PBLA14 END 30.158
HIERARCH ESO ISS PBL23 START 43.232
HIERARCH ESO ISS PBL23 END 43.315
HIERARCH ESO ISS PBLA23 START 10.3
HIERARCH ESO ISS PBLA23 END 11.4
HIERARCH ESO ISS PBL24 START 65.084
HIERARCH ESO ISS PBL24 END 66.33
HIERARCH ESO ISS PBLA24 START 53.138
HIERARCH ESO ISS PBLA24 END 54.545
HIERARCH ESO ISS PBL34 START 44.518
HIERARCH ESO ISS PBL34 END 45.615
HIERARCH ESO ISS PBLA34 START 94.516
HIERARCH ESO ISS PBLA34 END 95.012
HIERARCH ESO ISS AMBI TAU0 START 0.011751
HIERARCH ESO ISS AMBI TAU0 END 0.010926
HIERARCH ESO ISS AMBI TEMP 16.27
HIERARCH ESO ISS AMBI FWHM START 0.34
HIERARCH ESO ISS AMBI FWHM END 0.37