Exposure
ID
GRAVI.2024-07-18T03:25:09.520_1
Header ID
GRAVI.2024-07-18T03:25:09.520
Date updated
2024-07-18 08:45:42 UTC+0000
Release date
2025-07-18 08:45:39 UTC+0000
UTC Start
2024-07-18 03:25:09.520
UTC End
2024-07-18 03:31:09.520
MJD Start
60509.1424713
MJD End
60509.1466379667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0107615
Ambient temperature (°C)
17.32
Seeing (arcsec)
0.385
Observation
ID
60146
Category
science
Program ID
113.268P.004
Program Title
THE GALACTIC CENTER WITH GRAVITY - MEASURING THE SPIN OF SGR A* BY MEANS OF DEEP GRAVITY INTERFEROMETRY
Program Type
GTO
PI / COI
EISENHAUER / GILLESSEN / GENZEL / OTT / WIDMANN / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / BRANDNER / PERRIN / ROUSSELET-PERRAUT / GARCIA / MANG / PAUMARD / ECKART / VINCENT / BOURDAROT / LUTZ / STURM / CAO / HORROBIN / LE BOUQUIN / KREIDBERG /
Target
ID
44649
Name
SGRA
RA
266.416896
DEC
-29.00733
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 55.9680 55.8610 30.3000 30.9000
U1-U3 101.1920 100.9450 36.7000 37.3000
U1-U4 128.0920 127.5350 65.1310 65.8010
U2-U3 45.9940 45.8520 44.5000 45.1000
U2-U4 88.1230 87.7210 86.3800 87.1480
U3-U4 62.0210 61.8410 116.0590 116.9260
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.268P.004
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60509.1424713
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416896
DEC -29.00733
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 55.968
HIERARCH ESO ISS PBL12 END 55.861
HIERARCH ESO ISS PBLA12 START 30.3
HIERARCH ESO ISS PBLA12 END 30.9
HIERARCH ESO ISS PBL13 START 101.192
HIERARCH ESO ISS PBL13 END 100.945
HIERARCH ESO ISS PBLA13 START 36.7
HIERARCH ESO ISS PBLA13 END 37.3
HIERARCH ESO ISS PBL14 START 128.092
HIERARCH ESO ISS PBL14 END 127.535
HIERARCH ESO ISS PBLA14 START 65.131
HIERARCH ESO ISS PBLA14 END 65.801
HIERARCH ESO ISS PBL23 START 45.994
HIERARCH ESO ISS PBL23 END 45.852
HIERARCH ESO ISS PBLA23 START 44.5
HIERARCH ESO ISS PBLA23 END 45.1
HIERARCH ESO ISS PBL24 START 88.123
HIERARCH ESO ISS PBL24 END 87.721
HIERARCH ESO ISS PBLA24 START 86.38
HIERARCH ESO ISS PBLA24 END 87.148
HIERARCH ESO ISS PBL34 START 62.021
HIERARCH ESO ISS PBL34 END 61.841
HIERARCH ESO ISS PBLA34 START 116.059
HIERARCH ESO ISS PBLA34 END 116.926
HIERARCH ESO ISS AMBI TAU0 START 0.011773
HIERARCH ESO ISS AMBI TAU0 END 0.00975
HIERARCH ESO ISS AMBI TEMP 17.32
HIERARCH ESO ISS AMBI FWHM START 0.38
HIERARCH ESO ISS AMBI FWHM END 0.39
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1000
HIERARCH ESO FT ROBJ DELTA -290027.6541