Exposure
ID
GRAVI.2023-06-02T08:16:44.505_2
Header ID
GRAVI.2023-06-02T08:16:44.505
Date updated
2023-06-02 08:31:27 UTC+0000
Release date
2024-06-02 08:31:27 UTC+0000
UTC Start
2023-06-02 08:16:44.505
UTC End
2023-06-02 08:22:44.505
MJD Start
60097.34495955
MJD End
60097.3491262167
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.007196
Ambient temperature (°C)
16.07
Seeing (arcsec)
0.555
Observation
ID
55616
Category
science
Program ID
111.24H1.002
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
41180
Name
IRS16C
RA
266.417108333333
DEC
-29.0076453055556
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 52.5410 52.2100 38.3000 38.7000
U1-U3 93.2680 92.5130 44.6000 44.9000
U1-U4 109.7400 108.0210 75.2340 75.7910
U2-U3 41.4340 41.0030 52.5000 52.8000
U2-U4 74.7150 73.4920 100.2100 101.1780
U3-U4 55.9800 55.4750 133.4100 134.7010
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 111.24H1.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60097.34495955
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S4
RA 266.416531
DEC -29.00733
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 52.541
HIERARCH ESO ISS PBL12 END 52.21
HIERARCH ESO ISS PBLA12 START 38.3
HIERARCH ESO ISS PBLA12 END 38.7
HIERARCH ESO ISS PBL13 START 93.268
HIERARCH ESO ISS PBL13 END 92.513
HIERARCH ESO ISS PBLA13 START 44.6
HIERARCH ESO ISS PBLA13 END 44.9
HIERARCH ESO ISS PBL14 START 109.74
HIERARCH ESO ISS PBL14 END 108.021
HIERARCH ESO ISS PBLA14 START 75.234
HIERARCH ESO ISS PBLA14 END 75.791
HIERARCH ESO ISS PBL23 START 41.434
HIERARCH ESO ISS PBL23 END 41.003
HIERARCH ESO ISS PBLA23 START 52.5
HIERARCH ESO ISS PBLA23 END 52.8
HIERARCH ESO ISS PBL24 START 74.715
HIERARCH ESO ISS PBL24 END 73.492
HIERARCH ESO ISS PBLA24 START 100.21
HIERARCH ESO ISS PBLA24 END 101.178
HIERARCH ESO ISS PBL34 START 55.98
HIERARCH ESO ISS PBL34 END 55.475
HIERARCH ESO ISS PBLA34 START 133.41
HIERARCH ESO ISS PBLA34 END 134.701
HIERARCH ESO ISS AMBI TAU0 START 0.006618
HIERARCH ESO ISS AMBI TAU0 END 0.007774
HIERARCH ESO ISS AMBI TEMP 16.07
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.54
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1060
HIERARCH ESO FT ROBJ DELTA -290027.5231