Exposure
ID
GRAVI.2025-07-07T03:27:36.999_1
Header ID
GRAVI.2025-07-07T03:27:36.999
Date updated
2025-07-07 03:40:43 UTC+0000
Release date
2026-07-07 03:40:42 UTC+0000
UTC Start
2025-07-07 03:27:36.999
UTC End
2025-07-07 03:33:36.999
MJD Start
60863.14417823
MJD End
60863.14834489667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.006522999999999999
Ambient temperature (°C)
14.02
Seeing (arcsec)
0.5900000000000001
Observation
ID
68256
Category
science
Program ID
115.27WT.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 / 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
50724
Name
SGRA
RA
266.41626
DEC
-29.00736
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 56.4240 56.3780 26.1000 26.8000
U1-U3 102.2170 102.1190 32.5000 33.2000
U1-U4 130.1130 129.9750 60.5110 61.2580
U2-U3 46.5590 46.5090 40.2000 40.9000
U2-U4 89.4220 89.3690 81.3890 82.1650
U3-U4 62.4500 62.4710 110.8080 111.5820
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60863.14417823
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.41626
DEC -29.00736
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 56.424
HIERARCH ESO ISS PBL12 END 56.378
HIERARCH ESO ISS PBLA12 START 26.1
HIERARCH ESO ISS PBLA12 END 26.8
HIERARCH ESO ISS PBL13 START 102.217
HIERARCH ESO ISS PBL13 END 102.119
HIERARCH ESO ISS PBLA13 START 32.5
HIERARCH ESO ISS PBLA13 END 33.2
HIERARCH ESO ISS PBL14 START 130.113
HIERARCH ESO ISS PBL14 END 129.975
HIERARCH ESO ISS PBLA14 START 60.511
HIERARCH ESO ISS PBLA14 END 61.258
HIERARCH ESO ISS PBL23 START 46.559
HIERARCH ESO ISS PBL23 END 46.509
HIERARCH ESO ISS PBLA23 START 40.2
HIERARCH ESO ISS PBLA23 END 40.9
HIERARCH ESO ISS PBL24 START 89.422
HIERARCH ESO ISS PBL24 END 89.369
HIERARCH ESO ISS PBLA24 START 81.389
HIERARCH ESO ISS PBLA24 END 82.165
HIERARCH ESO ISS PBL34 START 62.45
HIERARCH ESO ISS PBL34 END 62.471
HIERARCH ESO ISS PBLA34 START 110.808
HIERARCH ESO ISS PBLA34 END 111.582
HIERARCH ESO ISS AMBI TAU0 START 0.007199
HIERARCH ESO ISS AMBI TAU0 END 0.005847
HIERARCH ESO ISS AMBI TEMP 14.02
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.55
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520