Exposure
ID
GRAVI.2022-05-22T10:24:11.258_1
Header ID
GRAVI.2022-05-22T10:24:11.258
Date updated
2022-05-24 13:59:26 UTC+0000
Release date
2023-05-22 10:40:52 UTC+0000
UTC Start
2022-05-22 10:24:11.258
UTC End
2022-05-22 10:29:31.258
MJD Start
59721.43346364
MJD End
59721.4371673437
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.001489
Ambient temperature (°C)
8.47
Seeing (arcsec)
1.35
Observation
ID
50962
Category
science
Program ID
109.22ZA.002
Program Title
THE GALACTIC CENTER WITH GRAVITY - PROBING EVENT HORIZON SCALE PHYSICS WITH STARS AND FLARES
Program Type
GTO
PI / COI
EISENHAUER/ GILLESSEN/ GENZEL/ OTT/ STRAUBMEIER/ ROUSSELET-PERRAUT/ BRANDNER/ GARCIA/ ECKART/ DE ZEEUW/ STADLER/ VON FELLENBERG/ WIDMANN/ PERRIN/ PAUMARD/ HORROBIN/ VINCENT/ HEIßEL/ DRESCHER/ BOURDAROT/ STRAUB/ CAO
Target
ID
38009
Name
HD206893Cn
RA
326.343911
DEC
-12.78329
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 55.4940 55.6090 26.1000 26.7000
U1-U3 100.6930 100.9320 32.6000 33.1000
U1-U4 129.3230 129.6160 60.6750 61.0610
U2-U3 45.9710 46.0890 40.3000 40.8000
U2-U4 89.3280 89.4040 81.2950 81.6160
U3-U4 62.3660 62.2670 110.1820 110.5280
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 109.22ZA.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59721.43346364
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD206893
HIERARCH ESO INS SOBJ NAME HD206893Cn
RA 326.343911
DEC -12.78329
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 339.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 32
HIERARCH ESO ISS PBL12 START 55.494
HIERARCH ESO ISS PBL12 END 55.609
HIERARCH ESO ISS PBLA12 START 26.1
HIERARCH ESO ISS PBLA12 END 26.7
HIERARCH ESO ISS PBL13 START 100.693
HIERARCH ESO ISS PBL13 END 100.932
HIERARCH ESO ISS PBLA13 START 32.6
HIERARCH ESO ISS PBLA13 END 33.1
HIERARCH ESO ISS PBL14 START 129.323
HIERARCH ESO ISS PBL14 END 129.616
HIERARCH ESO ISS PBLA14 START 60.675
HIERARCH ESO ISS PBLA14 END 61.061
HIERARCH ESO ISS PBL23 START 45.971
HIERARCH ESO ISS PBL23 END 46.089
HIERARCH ESO ISS PBLA23 START 40.3
HIERARCH ESO ISS PBLA23 END 40.8
HIERARCH ESO ISS PBL24 START 89.328
HIERARCH ESO ISS PBL24 END 89.404
HIERARCH ESO ISS PBLA24 START 81.295
HIERARCH ESO ISS PBLA24 END 81.616
HIERARCH ESO ISS PBL34 START 62.366
HIERARCH ESO ISS PBL34 END 62.267
HIERARCH ESO ISS PBLA34 START 110.182
HIERARCH ESO ISS PBLA34 END 110.528
HIERARCH ESO ISS AMBI TAU0 START 0.001489
HIERARCH ESO ISS AMBI TAU0 END 0.001489
HIERARCH ESO ISS AMBI TEMP 8.47
HIERARCH ESO ISS AMBI FWHM START 1.48
HIERARCH ESO ISS AMBI FWHM END 1.22
HIERARCH ESO FT ROBJ NAME HD206893
HIERARCH ESO FT ROBJ ALPHA 214521.905
HIERARCH ESO FT ROBJ DELTA -124700.068