Exposure
ID
GRAVI.2022-04-24T08:52:56.443_1
Header ID
GRAVI.2022-04-24T08:52:56.443
Date updated
2022-04-24 09:05:42 UTC+0000
Release date
2023-04-24 09:05:42 UTC+0000
UTC Start
2022-04-24 08:52:56.443
UTC End
2022-04-24 08:58:16.443
MJD Start
59693.37009772
MJD End
59693.3738014237
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0024985
Ambient temperature (°C)
9.6
Seeing (arcsec)
1.18
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 56.0900 56.0090 29.5000 30.1000
U1-U3 101.4740 101.2870 35.9000 36.5000
U1-U4 128.7110 128.3000 64.2570 64.8570
U2-U3 46.1540 46.0470 43.7000 44.2000
U2-U4 88.5610 88.2710 85.3950 86.0690
U3-U4 62.2100 62.0860 114.9720 115.7130
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 59693.37009772
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 56.09
HIERARCH ESO ISS PBL12 END 56.009
HIERARCH ESO ISS PBLA12 START 29.5
HIERARCH ESO ISS PBLA12 END 30.1
HIERARCH ESO ISS PBL13 START 101.474
HIERARCH ESO ISS PBL13 END 101.287
HIERARCH ESO ISS PBLA13 START 35.9
HIERARCH ESO ISS PBLA13 END 36.5
HIERARCH ESO ISS PBL14 START 128.711
HIERARCH ESO ISS PBL14 END 128.3
HIERARCH ESO ISS PBLA14 START 64.257
HIERARCH ESO ISS PBLA14 END 64.857
HIERARCH ESO ISS PBL23 START 46.154
HIERARCH ESO ISS PBL23 END 46.047
HIERARCH ESO ISS PBLA23 START 43.7
HIERARCH ESO ISS PBLA23 END 44.2
HIERARCH ESO ISS PBL24 START 88.561
HIERARCH ESO ISS PBL24 END 88.271
HIERARCH ESO ISS PBLA24 START 85.395
HIERARCH ESO ISS PBLA24 END 86.069
HIERARCH ESO ISS PBL34 START 62.21
HIERARCH ESO ISS PBL34 END 62.086
HIERARCH ESO ISS PBLA34 START 114.972
HIERARCH ESO ISS PBLA34 END 115.713
HIERARCH ESO ISS AMBI TAU0 START 0.002636
HIERARCH ESO ISS AMBI TAU0 END 0.002361
HIERARCH ESO ISS AMBI TEMP 9.6
HIERARCH ESO ISS AMBI FWHM START 1.11
HIERARCH ESO ISS AMBI FWHM END 1.25
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5310