Exposure
ID
GRAVI.2025-05-13T09:01:35.118_1
Header ID
GRAVI.2025-05-13T09:01:35.118
Date updated
2025-05-13 09:20:55 UTC+0000
Release date
2026-05-13 09:20:55 UTC+0000
UTC Start
2025-05-13 09:01:35.118
UTC End
2025-05-13 09:07:35.118
MJD Start
60808.3761009
MJD End
60808.38026756667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.020714
Ambient temperature (°C)
16.27
Seeing (arcsec)
0.195
Observation
ID
67343
Category
science
Program ID
115.27WT.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 / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROUSSELET-PER
Target
ID
50084
Name
SGRA
RA
266.416485
DEC
-29.0075
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 53.9460 53.6890 36.4000 36.8000
U1-U3 96.4990 95.9070 42.7000 43.1000
U1-U4 117.1760 115.8020 72.4420 73.0180
U2-U3 43.2880 42.9470 50.6000 51.0000
U2-U4 80.0900 79.0880 95.7720 96.6360
U3-U4 58.3090 57.8610 127.5380 128.6700
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60808.3761009
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416485
DEC -29.0075
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 53.946
HIERARCH ESO ISS PBL12 END 53.689
HIERARCH ESO ISS PBLA12 START 36.4
HIERARCH ESO ISS PBLA12 END 36.8
HIERARCH ESO ISS PBL13 START 96.499
HIERARCH ESO ISS PBL13 END 95.907
HIERARCH ESO ISS PBLA13 START 42.7
HIERARCH ESO ISS PBLA13 END 43.1
HIERARCH ESO ISS PBL14 START 117.176
HIERARCH ESO ISS PBL14 END 115.802
HIERARCH ESO ISS PBLA14 START 72.442
HIERARCH ESO ISS PBLA14 END 73.018
HIERARCH ESO ISS PBL23 START 43.288
HIERARCH ESO ISS PBL23 END 42.947
HIERARCH ESO ISS PBLA23 START 50.6
HIERARCH ESO ISS PBLA23 END 51.0
HIERARCH ESO ISS PBL24 START 80.09
HIERARCH ESO ISS PBL24 END 79.088
HIERARCH ESO ISS PBLA24 START 95.772
HIERARCH ESO ISS PBLA24 END 96.636
HIERARCH ESO ISS PBL34 START 58.309
HIERARCH ESO ISS PBL34 END 57.861
HIERARCH ESO ISS PBLA34 START 127.538
HIERARCH ESO ISS PBLA34 END 128.67
HIERARCH ESO ISS AMBI TAU0 START 0.019376
HIERARCH ESO ISS AMBI TAU0 END 0.022052
HIERARCH ESO ISS AMBI TEMP 16.27
HIERARCH ESO ISS AMBI FWHM START 0.2
HIERARCH ESO ISS AMBI FWHM END 0.19
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530