Exposure
ID
GRAVI.2025-08-07T02:26:02.089_1
Header ID
GRAVI.2025-08-07T02:26:02.089
Date updated
2025-08-07 02:40:53 UTC+0000
Release date
2026-08-07 02:40:53 UTC+0000
UTC Start
2025-08-07 02:26:02.089
UTC End
2025-08-07 02:32:02.089
MJD Start
60894.10141307
MJD End
60894.105579736664
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0025185
Ambient temperature (°C)
13.39
Seeing (arcsec)
1.37
Observation
ID
69339
Category
science
Program ID
115.27WT.004
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
51533
Name
SGRA
RA
266.417149
DEC
-29.00712
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 55.6310 55.4910 32.0000 32.6000
U1-U3 100.4110 100.0860 38.4000 38.9000
U1-U4 126.3100 125.5550 67.0260 67.6680
U2-U3 45.5450 45.3580 46.2000 46.7000
U2-U4 86.8260 86.2690 88.5930 89.3720
U3-U4 61.4280 61.1680 118.5940 119.5150
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.004
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60894.10141307
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.417149
DEC -29.00712
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 55.631
HIERARCH ESO ISS PBL12 END 55.491
HIERARCH ESO ISS PBLA12 START 32.0
HIERARCH ESO ISS PBLA12 END 32.6
HIERARCH ESO ISS PBL13 START 100.411
HIERARCH ESO ISS PBL13 END 100.086
HIERARCH ESO ISS PBLA13 START 38.4
HIERARCH ESO ISS PBLA13 END 38.9
HIERARCH ESO ISS PBL14 START 126.31
HIERARCH ESO ISS PBL14 END 125.555
HIERARCH ESO ISS PBLA14 START 67.026
HIERARCH ESO ISS PBLA14 END 67.668
HIERARCH ESO ISS PBL23 START 45.545
HIERARCH ESO ISS PBL23 END 45.358
HIERARCH ESO ISS PBLA23 START 46.2
HIERARCH ESO ISS PBLA23 END 46.7
HIERARCH ESO ISS PBL24 START 86.826
HIERARCH ESO ISS PBL24 END 86.269
HIERARCH ESO ISS PBLA24 START 88.593
HIERARCH ESO ISS PBLA24 END 89.372
HIERARCH ESO ISS PBL34 START 61.428
HIERARCH ESO ISS PBL34 END 61.168
HIERARCH ESO ISS PBLA34 START 118.594
HIERARCH ESO ISS PBLA34 END 119.515
HIERARCH ESO ISS AMBI TAU0 START 0.002273
HIERARCH ESO ISS AMBI TAU0 END 0.002764
HIERARCH ESO ISS AMBI TEMP 13.39
HIERARCH ESO ISS AMBI FWHM START 1.5
HIERARCH ESO ISS AMBI FWHM END 1.24
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0980
HIERARCH ESO FT ROBJ DELTA -290027.6520