Exposure
ID
GRAVI.2025-08-08T02:55:56.760_1
Header ID
GRAVI.2025-08-08T02:55:56.760
Date updated
2025-08-08 03:10:27 UTC+0000
Release date
2026-08-08 03:10:27 UTC+0000
UTC Start
2025-08-08 02:55:56.760
UTC End
2025-08-08 03:01:56.760
MJD Start
60895.12218472
MJD End
60895.126351386665
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.001951
Ambient temperature (°C)
12.8
Seeing (arcsec)
1.0150000000000001
Observation
ID
69552
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
51662
Name
SGRA
RA
266.417584
DEC
-29.00706
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 54.7640 54.5580 34.8000 35.2000
U1-U3 98.3940 97.9160 41.1000 41.6000
U1-U4 121.5960 120.4770 70.2900 70.8890
U2-U3 44.3800 44.1040 48.9000 49.4000
U2-U4 83.3400 82.5140 92.7350 93.5520
U3-U4 59.7950 59.4130 123.6400 124.6750
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 60895.12218472
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.417584
DEC -29.00706
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 54.764
HIERARCH ESO ISS PBL12 END 54.558
HIERARCH ESO ISS PBLA12 START 34.8
HIERARCH ESO ISS PBLA12 END 35.2
HIERARCH ESO ISS PBL13 START 98.394
HIERARCH ESO ISS PBL13 END 97.916
HIERARCH ESO ISS PBLA13 START 41.1
HIERARCH ESO ISS PBLA13 END 41.6
HIERARCH ESO ISS PBL14 START 121.596
HIERARCH ESO ISS PBL14 END 120.477
HIERARCH ESO ISS PBLA14 START 70.29
HIERARCH ESO ISS PBLA14 END 70.889
HIERARCH ESO ISS PBL23 START 44.38
HIERARCH ESO ISS PBL23 END 44.104
HIERARCH ESO ISS PBLA23 START 48.9
HIERARCH ESO ISS PBLA23 END 49.4
HIERARCH ESO ISS PBL24 START 83.34
HIERARCH ESO ISS PBL24 END 82.514
HIERARCH ESO ISS PBLA24 START 92.735
HIERARCH ESO ISS PBLA24 END 93.552
HIERARCH ESO ISS PBL34 START 59.795
HIERARCH ESO ISS PBL34 END 59.413
HIERARCH ESO ISS PBLA34 START 123.64
HIERARCH ESO ISS PBLA34 END 124.675
HIERARCH ESO ISS AMBI TAU0 START 0.001804
HIERARCH ESO ISS AMBI TAU0 END 0.002098
HIERARCH ESO ISS AMBI TEMP 12.8
HIERARCH ESO ISS AMBI FWHM START 1.1
HIERARCH ESO ISS AMBI FWHM END 0.93
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0980
HIERARCH ESO FT ROBJ DELTA -290027.6520