Exposure
ID
GRAVI.2025-07-07T04:51:55.214_2
Header ID
GRAVI.2025-07-07T04:51:55.214
Date updated
2025-07-07 05:10:37 UTC+0000
Release date
2026-07-07 05:10:37 UTC+0000
UTC Start
2025-07-07 04:51:55.214
UTC End
2025-07-07 04:57:55.214
MJD Start
60863.20272238
MJD End
60863.20688904667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.008626499999999999
Ambient temperature (°C)
14.12
Seeing (arcsec)
0.43
Observation
ID
68254
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
50720
Name
IRS16C
RA
266.4170791666666
DEC
-29.00768111111111
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 55.0510 54.8660 34.0000 34.5000
U1-U3 99.0630 98.6320 40.4000 40.9000
U1-U4 123.1610 122.1530 69.3650 69.9730
U2-U3 44.7660 44.5180 48.2000 48.7000
U2-U4 84.4980 83.7520 91.5120 92.3110
U3-U4 60.3360 59.9870 122.1130 123.1070
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 60863.20272238
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416511
DEC -29.00752
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 55.051
HIERARCH ESO ISS PBL12 END 54.866
HIERARCH ESO ISS PBLA12 START 34.0
HIERARCH ESO ISS PBLA12 END 34.5
HIERARCH ESO ISS PBL13 START 99.063
HIERARCH ESO ISS PBL13 END 98.632
HIERARCH ESO ISS PBLA13 START 40.4
HIERARCH ESO ISS PBLA13 END 40.9
HIERARCH ESO ISS PBL14 START 123.161
HIERARCH ESO ISS PBL14 END 122.153
HIERARCH ESO ISS PBLA14 START 69.365
HIERARCH ESO ISS PBLA14 END 69.973
HIERARCH ESO ISS PBL23 START 44.766
HIERARCH ESO ISS PBL23 END 44.518
HIERARCH ESO ISS PBLA23 START 48.2
HIERARCH ESO ISS PBLA23 END 48.7
HIERARCH ESO ISS PBL24 START 84.498
HIERARCH ESO ISS PBL24 END 83.752
HIERARCH ESO ISS PBLA24 START 91.512
HIERARCH ESO ISS PBLA24 END 92.311
HIERARCH ESO ISS PBL34 START 60.336
HIERARCH ESO ISS PBL34 END 59.987
HIERARCH ESO ISS PBLA34 START 122.113
HIERARCH ESO ISS PBLA34 END 123.107
HIERARCH ESO ISS AMBI TAU0 START 0.009189
HIERARCH ESO ISS AMBI TAU0 END 0.008064
HIERARCH ESO ISS AMBI TEMP 14.12
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.45
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520