Exposure
ID
GRAVI.2023-07-06T01:02:52.444_1
Header ID
GRAVI.2023-07-06T01:02:52.444
Date updated
2023-07-06 01:15:41 UTC+0000
Release date
2023-07-06 01:02:52 UTC+0000
UTC Start
2023-07-06 01:02:52.444
UTC End
2023-07-06 01:08:52.444
MJD Start
60131.04366255
MJD End
60131.0478292167
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0031505
Ambient temperature (°C)
13.63
Seeing (arcsec)
0.805
Observation
ID
56152
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
41599
Name
R2
RA
266.41682
DEC
-29.00731
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 56.2900 56.3070 6.8000 7.7000
U1-U3 101.1580 101.2440 12.2000 13.2000
U1-U4 119.9170 120.6840 37.6090 38.8620
U2-U3 45.4190 45.5050 18.8000 19.9000
U2-U4 77.1520 78.1090 59.5450 60.7410
U3-U4 52.0040 52.8460 94.2910 95.0060
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 60131.04366255
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME R2
RA 266.41682
DEC -29.00731
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 56.29
HIERARCH ESO ISS PBL12 END 56.307
HIERARCH ESO ISS PBLA12 START 6.8
HIERARCH ESO ISS PBLA12 END 7.7
HIERARCH ESO ISS PBL13 START 101.158
HIERARCH ESO ISS PBL13 END 101.244
HIERARCH ESO ISS PBLA13 START 12.2
HIERARCH ESO ISS PBLA13 END 13.2
HIERARCH ESO ISS PBL14 START 119.917
HIERARCH ESO ISS PBL14 END 120.684
HIERARCH ESO ISS PBLA14 START 37.609
HIERARCH ESO ISS PBLA14 END 38.862
HIERARCH ESO ISS PBL23 START 45.419
HIERARCH ESO ISS PBL23 END 45.505
HIERARCH ESO ISS PBLA23 START 18.8
HIERARCH ESO ISS PBLA23 END 19.9
HIERARCH ESO ISS PBL24 START 77.152
HIERARCH ESO ISS PBL24 END 78.109
HIERARCH ESO ISS PBLA24 START 59.545
HIERARCH ESO ISS PBLA24 END 60.741
HIERARCH ESO ISS PBL34 START 52.004
HIERARCH ESO ISS PBL34 END 52.846
HIERARCH ESO ISS PBLA34 START 94.291
HIERARCH ESO ISS PBLA34 END 95.006
HIERARCH ESO ISS AMBI TAU0 START 0.003486
HIERARCH ESO ISS AMBI TAU0 END 0.002815
HIERARCH ESO ISS AMBI TEMP 13.63
HIERARCH ESO ISS AMBI FWHM START 0.85
HIERARCH ESO ISS AMBI FWHM END 0.76
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1060
HIERARCH ESO FT ROBJ DELTA -290027.5231