Exposure
ID
GRAVI.2025-03-16T09:47:52.642_1
Header ID
GRAVI.2025-03-16T09:47:52.642
Date updated
2025-03-16 10:00:36 UTC+0000
Release date
2026-03-16 10:00:36 UTC+0000
UTC Start
2025-03-16 09:47:52.642
UTC End
2025-03-16 09:53:52.642
MJD Start
60750.40824817
MJD End
60750.41241483667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0065525
Ambient temperature (°C)
13.57
Seeing (arcsec)
0.7350000000000001
Observation
ID
65148
Category
science
Program ID
114.270V.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 / WIDMANN / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROU
Target
ID
48519
Name
SGRA
RA
266.41755
DEC
-29.00722
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 56.5430 56.5520 18.6000 19.4000
U1-U3 102.2930 102.3440 24.7000 25.6000
U1-U4 128.4290 128.8260 52.1770 53.0980
U2-U3 46.4690 46.5180 32.2000 33.1000
U2-U4 87.1450 87.5970 73.2200 74.0920
U3-U4 60.3660 60.7340 103.5750 104.2750
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 114.270V.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60750.40824817
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.41755
DEC -29.00722
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 56.543
HIERARCH ESO ISS PBL12 END 56.552
HIERARCH ESO ISS PBLA12 START 18.6
HIERARCH ESO ISS PBLA12 END 19.4
HIERARCH ESO ISS PBL13 START 102.293
HIERARCH ESO ISS PBL13 END 102.344
HIERARCH ESO ISS PBLA13 START 24.7
HIERARCH ESO ISS PBLA13 END 25.6
HIERARCH ESO ISS PBL14 START 128.429
HIERARCH ESO ISS PBL14 END 128.826
HIERARCH ESO ISS PBLA14 START 52.177
HIERARCH ESO ISS PBLA14 END 53.098
HIERARCH ESO ISS PBL23 START 46.469
HIERARCH ESO ISS PBL23 END 46.518
HIERARCH ESO ISS PBLA23 START 32.2
HIERARCH ESO ISS PBLA23 END 33.1
HIERARCH ESO ISS PBL24 START 87.145
HIERARCH ESO ISS PBL24 END 87.597
HIERARCH ESO ISS PBLA24 START 73.22
HIERARCH ESO ISS PBLA24 END 74.092
HIERARCH ESO ISS PBL34 START 60.366
HIERARCH ESO ISS PBL34 END 60.734
HIERARCH ESO ISS PBLA34 START 103.575
HIERARCH ESO ISS PBLA34 END 104.275
HIERARCH ESO ISS AMBI TAU0 START 0.008338
HIERARCH ESO ISS AMBI TAU0 END 0.004767
HIERARCH ESO ISS AMBI TEMP 13.57
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.92
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530