Exposure
ID
GRAVI.2023-01-10T07:12:31.994_1
Header ID
GRAVI.2023-01-10T07:12:31.994
Date updated
2023-01-10 07:25:50 UTC+0000
Release date
2023-01-10 07:12:31 UTC+0000
UTC Start
2023-01-10 07:12:31.994
UTC End
2023-01-10 07:18:31.994
MJD Start
59954.3003703
MJD End
59954.3045369667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.007415
Ambient temperature (°C)
11.66
Seeing (arcsec)
0.585
Observation
ID
53801
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
39994
Name
CD-40_7646
RA
195.783455
DEC
-40.89683
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 56.2710 56.2690 0.4000 1.3000
U1-U3 102.4020 102.3970 5.0000 6.0000
U1-U4 124.1560 124.5170 25.9830 27.3500
U2-U3 46.5350 46.5470 10.6000 11.7000
U2-U4 77.3150 77.9680 44.2950 45.8120
U3-U4 46.4250 47.2670 78.0700 79.3120
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 59954.3003703
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME CD-40 7646
HIERARCH ESO INS SOBJ NAME CD-40_7646
RA 195.783455
DEC -40.89683
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 56.271
HIERARCH ESO ISS PBL12 END 56.269
HIERARCH ESO ISS PBLA12 START 0.4
HIERARCH ESO ISS PBLA12 END 1.3
HIERARCH ESO ISS PBL13 START 102.402
HIERARCH ESO ISS PBL13 END 102.397
HIERARCH ESO ISS PBLA13 START 5.0
HIERARCH ESO ISS PBLA13 END 6.0
HIERARCH ESO ISS PBL14 START 124.156
HIERARCH ESO ISS PBL14 END 124.517
HIERARCH ESO ISS PBLA14 START 25.983
HIERARCH ESO ISS PBLA14 END 27.35
HIERARCH ESO ISS PBL23 START 46.535
HIERARCH ESO ISS PBL23 END 46.547
HIERARCH ESO ISS PBLA23 START 10.6
HIERARCH ESO ISS PBLA23 END 11.7
HIERARCH ESO ISS PBL24 START 77.315
HIERARCH ESO ISS PBL24 END 77.968
HIERARCH ESO ISS PBLA24 START 44.295
HIERARCH ESO ISS PBLA24 END 45.812
HIERARCH ESO ISS PBL34 START 46.425
HIERARCH ESO ISS PBL34 END 47.267
HIERARCH ESO ISS PBLA34 START 78.07
HIERARCH ESO ISS PBLA34 END 79.312
HIERARCH ESO ISS AMBI TAU0 START 0.00852
HIERARCH ESO ISS AMBI TAU0 END 0.00631
HIERARCH ESO ISS AMBI TEMP 11.66
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.62