Exposure
ID
GRAVI.2022-04-24T08:07:23.328_1
Header ID
GRAVI.2022-04-24T08:07:23.328
Date updated
2022-04-24 08:25:51 UTC+0000
Release date
2023-04-24 08:25:51 UTC+0000
UTC Start
2022-04-24 08:07:23.328
UTC End
2022-04-24 08:12:43.328
MJD Start
59693.33846445
MJD End
59693.3421681537
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0031045
Ambient temperature (°C)
10.12
Seeing (arcsec)
0.945
Observation
ID
50592
Category
science
Program ID
109.22ZA.001
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
37785
Name
S2
RA
266.416938
DEC
-29.00708
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-SPLIT
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.4910 56.4630 24.8000 25.4000
U1-U3 102.3500 102.2960 31.1000 31.8000
U1-U4 130.2100 130.1910 59.0700 59.7630
U2-U3 46.6210 46.5970 38.8000 39.5000
U2-U4 89.3790 89.4230 79.9190 80.6220
U3-U4 62.3180 62.3950 109.3880 110.0610
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 109.22ZA.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59693.33846445
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416938
DEC -29.00708
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE SPLIT
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 342.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 32
HIERARCH ESO ISS PBL12 START 56.491
HIERARCH ESO ISS PBL12 END 56.463
HIERARCH ESO ISS PBLA12 START 24.8
HIERARCH ESO ISS PBLA12 END 25.4
HIERARCH ESO ISS PBL13 START 102.35
HIERARCH ESO ISS PBL13 END 102.296
HIERARCH ESO ISS PBLA13 START 31.1
HIERARCH ESO ISS PBLA13 END 31.8
HIERARCH ESO ISS PBL14 START 130.21
HIERARCH ESO ISS PBL14 END 130.191
HIERARCH ESO ISS PBLA14 START 59.07
HIERARCH ESO ISS PBLA14 END 59.763
HIERARCH ESO ISS PBL23 START 46.621
HIERARCH ESO ISS PBL23 END 46.597
HIERARCH ESO ISS PBLA23 START 38.8
HIERARCH ESO ISS PBLA23 END 39.5
HIERARCH ESO ISS PBL24 START 89.379
HIERARCH ESO ISS PBL24 END 89.423
HIERARCH ESO ISS PBLA24 START 79.919
HIERARCH ESO ISS PBLA24 END 80.622
HIERARCH ESO ISS PBL34 START 62.318
HIERARCH ESO ISS PBL34 END 62.395
HIERARCH ESO ISS PBLA34 START 109.388
HIERARCH ESO ISS PBLA34 END 110.061
HIERARCH ESO ISS AMBI TAU0 START 0.003004
HIERARCH ESO ISS AMBI TAU0 END 0.003205
HIERARCH ESO ISS AMBI TEMP 10.12
HIERARCH ESO ISS AMBI FWHM START 1.01
HIERARCH ESO ISS AMBI FWHM END 0.88
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5310