Exposure
ID
GRAVI.2022-11-15T07:00:30.036_1
Header ID
GRAVI.2022-11-15T07:00:30.036
Date updated
2022-11-15 07:15:25 UTC+0000
Release date
2023-11-15 07:15:25 UTC+0000
UTC Start
2022-11-15 07:00:30.036
UTC End
2022-11-15 07:06:30.036
MJD Start
59898.2920143
MJD End
59898.2961809667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0159995
Ambient temperature (°C)
15.34
Seeing (arcsec)
0.36
Observation
ID
53150
Category
science
Program ID
110.23XR.001
Program Title
PROBING A CLOSE BINARY OF SUPERMASSIVE BLACK HOLES WITH GRAVITY
Program Type
Normal
PI / COI
SHANGGUAN/ BROTHERTON/ CAO/ DAVIES/ DEXTER/ DE ZEEUW/ DU/ EISENHAUER/ HO/ LI/ LUTZ/ SANTOS/ SHIMIZU/ SONGSHENG/ STURM/ WANG
Target
ID
39520
Name
Akn120
RA
79.049128
DEC
-0.14997
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 54.0740 54.3070 31.2000 31.6000
U1-U3 99.0530 99.4790 37.4000 37.7000
U1-U4 130.0130 130.1500 63.2760 63.3100
U2-U3 45.6590 45.8360 44.7000 44.9000
U2-U4 88.9310 88.6390 82.0970 82.0740
U3-U4 59.5300 59.0170 109.8760 110.0600
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 110.23XR.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 59898.2920143
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME Akn120
HIERARCH ESO INS SOBJ NAME Akn120
RA 79.049128
DEC -0.14997
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 54.074
HIERARCH ESO ISS PBL12 END 54.307
HIERARCH ESO ISS PBLA12 START 31.2
HIERARCH ESO ISS PBLA12 END 31.6
HIERARCH ESO ISS PBL13 START 99.053
HIERARCH ESO ISS PBL13 END 99.479
HIERARCH ESO ISS PBLA13 START 37.4
HIERARCH ESO ISS PBLA13 END 37.7
HIERARCH ESO ISS PBL14 START 130.013
HIERARCH ESO ISS PBL14 END 130.15
HIERARCH ESO ISS PBLA14 START 63.276
HIERARCH ESO ISS PBLA14 END 63.31
HIERARCH ESO ISS PBL23 START 45.659
HIERARCH ESO ISS PBL23 END 45.836
HIERARCH ESO ISS PBLA23 START 44.7
HIERARCH ESO ISS PBLA23 END 44.9
HIERARCH ESO ISS PBL24 START 88.931
HIERARCH ESO ISS PBL24 END 88.639
HIERARCH ESO ISS PBLA24 START 82.097
HIERARCH ESO ISS PBLA24 END 82.074
HIERARCH ESO ISS PBL34 START 59.53
HIERARCH ESO ISS PBL34 END 59.017
HIERARCH ESO ISS PBLA34 START 109.876
HIERARCH ESO ISS PBLA34 END 110.06
HIERARCH ESO ISS AMBI TAU0 START 0.016324
HIERARCH ESO ISS AMBI TAU0 END 0.015675
HIERARCH ESO ISS AMBI TEMP 15.34
HIERARCH ESO ISS AMBI FWHM START 0.35
HIERARCH ESO ISS AMBI FWHM END 0.37