Exposure
ID
GRAVI.2022-04-26T10:25:50.455_1
Header ID
GRAVI.2022-04-26T10:25:50.455
Date updated
2022-04-26 10:40:52 UTC+0000
Release date
2023-04-26 10:40:52 UTC+0000
UTC Start
2022-04-26 10:25:50.455
UTC End
2022-04-26 10:31:10.455
MJD Start
59695.43461175
MJD End
59695.4383154537
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.002831
Ambient temperature (°C)
11.34
Seeing (arcsec)
1.21
Observation
ID
50602
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
37791
Name
S2
RA
266.416815
DEC
-29.00698
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 53.2590 0.0000 37.5000 0.0000
U1-U3 94.9150 0.0000 43.7000 0.0000
U1-U4 113.5120 0.0000 73.9100 0.0000
U2-U3 42.3770 0.0000 51.6000 0.0000
U2-U4 77.4250 0.0000 98.0240 0.0000
U3-U4 57.1310 0.0000 130.5030 0.0000
Invalid fields
Key
PROJECTED_BASELINES
Header: validation messages
Message
Invalid value for 'HIERARCH ESO ISS PBL12 END' : '0.0'
Invalid value for 'HIERARCH ESO ISS PBLA12 END' : '0.0'
Invalid value for 'HIERARCH ESO ISS PBL13 END' : '0.0'
Invalid value for 'HIERARCH ESO ISS PBLA13 END' : '0.0'
Invalid value for 'HIERARCH ESO ISS PBL14 END' : '0.0'
Invalid value for 'HIERARCH ESO ISS PBLA14 END' : '0.0'
Invalid value for 'HIERARCH ESO ISS PBL23 END' : '0.0'
Invalid value for 'HIERARCH ESO ISS PBLA23 END' : '0.0'
Invalid value for 'HIERARCH ESO ISS PBL24 END' : '0.0'
Invalid value for 'HIERARCH ESO ISS PBLA24 END' : '0.0'
Invalid value for 'HIERARCH ESO ISS PBL34 END' : '0.0'
Invalid value for 'HIERARCH ESO ISS PBLA34 END' : '0.0'
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 59695.43461175
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416815
DEC -29.00698
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 53.259
HIERARCH ESO ISS PBL12 END 0.0
HIERARCH ESO ISS PBLA12 START 37.5
HIERARCH ESO ISS PBLA12 END 0.0
HIERARCH ESO ISS PBL13 START 94.915
HIERARCH ESO ISS PBL13 END 0.0
HIERARCH ESO ISS PBLA13 START 43.7
HIERARCH ESO ISS PBLA13 END 0.0
HIERARCH ESO ISS PBL14 START 113.512
HIERARCH ESO ISS PBL14 END 0.0
HIERARCH ESO ISS PBLA14 START 73.91
HIERARCH ESO ISS PBLA14 END 0.0
HIERARCH ESO ISS PBL23 START 42.377
HIERARCH ESO ISS PBL23 END 0.0
HIERARCH ESO ISS PBLA23 START 51.6
HIERARCH ESO ISS PBLA23 END 0.0
HIERARCH ESO ISS PBL24 START 77.425
HIERARCH ESO ISS PBL24 END 0.0
HIERARCH ESO ISS PBLA24 START 98.024
HIERARCH ESO ISS PBLA24 END 0.0
HIERARCH ESO ISS PBL34 START 57.131
HIERARCH ESO ISS PBL34 END 0.0
HIERARCH ESO ISS PBLA34 START 130.503
HIERARCH ESO ISS PBLA34 END 0.0
HIERARCH ESO ISS AMBI TAU0 START 0.002831
HIERARCH ESO ISS AMBI TAU0 END 0.002831
HIERARCH ESO ISS AMBI TEMP 11.34
HIERARCH ESO ISS AMBI FWHM START 1.39
HIERARCH ESO ISS AMBI FWHM END 1.03
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5310