Exposure
ID
GRAVI.2024-06-26T06:16:17.231_1
Header ID
GRAVI.2024-06-26T06:16:17.231
Date updated
2024-06-26 06:30:44 UTC+0000
Release date
2025-06-26 06:30:44 UTC+0000
UTC Start
2024-06-26 06:16:17.231
UTC End
2024-06-26 06:22:17.231
MJD Start
60487.26131054
MJD End
60487.2654772067
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.00265
Ambient temperature (°C)
11.25
Seeing (arcsec)
0.59
Observation
ID
59776
Category
science
Program ID
113.268P.003
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
44337
Name
SGRA
RA
266.417093
DEC
-29.00678
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 53.5970 53.3210 37.0000 37.4000
U1-U3 95.6940 95.0590 43.3000 43.7000
U1-U4 115.3090 113.8440 73.2170 73.7860
U2-U3 42.8240 42.4600 51.2000 51.6000
U2-U4 78.7280 77.6660 96.9410 97.8270
U3-U4 57.7020 57.2370 129.0710 130.2410
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.268P.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60487.26131054
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.417093
DEC -29.00678
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 53.597
HIERARCH ESO ISS PBL12 END 53.321
HIERARCH ESO ISS PBLA12 START 37.0
HIERARCH ESO ISS PBLA12 END 37.4
HIERARCH ESO ISS PBL13 START 95.694
HIERARCH ESO ISS PBL13 END 95.059
HIERARCH ESO ISS PBLA13 START 43.3
HIERARCH ESO ISS PBLA13 END 43.7
HIERARCH ESO ISS PBL14 START 115.309
HIERARCH ESO ISS PBL14 END 113.844
HIERARCH ESO ISS PBLA14 START 73.217
HIERARCH ESO ISS PBLA14 END 73.786
HIERARCH ESO ISS PBL23 START 42.824
HIERARCH ESO ISS PBL23 END 42.46
HIERARCH ESO ISS PBLA23 START 51.2
HIERARCH ESO ISS PBLA23 END 51.6
HIERARCH ESO ISS PBL24 START 78.728
HIERARCH ESO ISS PBL24 END 77.666
HIERARCH ESO ISS PBLA24 START 96.941
HIERARCH ESO ISS PBLA24 END 97.827
HIERARCH ESO ISS PBL34 START 57.702
HIERARCH ESO ISS PBL34 END 57.237
HIERARCH ESO ISS PBLA34 START 129.071
HIERARCH ESO ISS PBLA34 END 130.241
HIERARCH ESO ISS AMBI TAU0 START 0.00265
HIERARCH ESO ISS AMBI TAU0 END 0.00265
HIERARCH ESO ISS AMBI TEMP 11.25
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.59
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1000
HIERARCH ESO FT ROBJ DELTA -290027.6541