Exposure
ID
GRAVI.2023-07-04T06:36:34.333_1
Header ID
GRAVI.2023-07-04T06:36:34.333
Date updated
2023-07-04 06:51:36 UTC+0000
Release date
2023-07-04 06:36:34 UTC+0000
UTC Start
2023-07-04 06:36:34.333
UTC End
2023-07-04 06:42:34.333
MJD Start
60129.27539737
MJD End
60129.2795640367
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0017335
Ambient temperature (°C)
12.12
Seeing (arcsec)
1.43
Observation
ID
56142
Category
calibrator
Program ID
111.24H1.003
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/ BRANDNER/ ROUSSELET-PERRAUT/ PERRIN/ GARCIA/ ECKART/ DE ZEEUW/ WIDMANN/ PAUMARD/ HORROBIN/ VINCENT/ DRESCHER/ BOURDAROT/ CAO/ LUTZ/ STURM/ RIBEIRO
Target
ID
41589
Name
R2
RA
266.416687
DEC
-29.0073
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 51.1490 50.7610 39.5000 39.8000
U1-U3 90.0950 89.2160 45.7000 46.0000
U1-U4 102.5670 100.5980 77.4150 77.9590
U2-U3 39.6270 39.1280 53.7000 54.0000
U2-U4 69.6640 68.3030 104.1990 105.2830
U3-U4 53.9620 53.4490 138.7140 140.1390
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 111.24H1.003
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,DUAL
MJD-OBS 60129.27539737
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME R2
RA 266.416687
DEC -29.0073
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 389.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 51.149
HIERARCH ESO ISS PBL12 END 50.761
HIERARCH ESO ISS PBLA12 START 39.5
HIERARCH ESO ISS PBLA12 END 39.8
HIERARCH ESO ISS PBL13 START 90.095
HIERARCH ESO ISS PBL13 END 89.216
HIERARCH ESO ISS PBLA13 START 45.7
HIERARCH ESO ISS PBLA13 END 46.0
HIERARCH ESO ISS PBL14 START 102.567
HIERARCH ESO ISS PBL14 END 100.598
HIERARCH ESO ISS PBLA14 START 77.415
HIERARCH ESO ISS PBLA14 END 77.959
HIERARCH ESO ISS PBL23 START 39.627
HIERARCH ESO ISS PBL23 END 39.128
HIERARCH ESO ISS PBLA23 START 53.7
HIERARCH ESO ISS PBLA23 END 54.0
HIERARCH ESO ISS PBL24 START 69.664
HIERARCH ESO ISS PBL24 END 68.303
HIERARCH ESO ISS PBLA24 START 104.199
HIERARCH ESO ISS PBLA24 END 105.283
HIERARCH ESO ISS PBL34 START 53.962
HIERARCH ESO ISS PBL34 END 53.449
HIERARCH ESO ISS PBLA34 START 138.714
HIERARCH ESO ISS PBLA34 END 140.139
HIERARCH ESO ISS AMBI TAU0 START 0.001677
HIERARCH ESO ISS AMBI TAU0 END 0.00179
HIERARCH ESO ISS AMBI TEMP 12.12
HIERARCH ESO ISS AMBI FWHM START 1.49
HIERARCH ESO ISS AMBI FWHM END 1.37
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1060
HIERARCH ESO FT ROBJ DELTA -290027.5231