Exposure
- ID
- GRAVI.2023-08-31T01:54:35.629_2
- Header ID
- GRAVI.2023-08-31T01:54:35.629
- Date updated
- 2023-08-31 02:10:23 UTC+0000
- Release date
- 2024-08-31 02:10:23 UTC+0000
- UTC Start
- 2023-08-31 01:54:35.629
- UTC End
- 2023-08-31 02:00:35.629
- MJD Start
- 60187.07957904
- MJD End
- 60187.08374570667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0023235
- Ambient temperature (°C)
- 14.51
- Seeing (arcsec)
- 1.2799999999999998
Observation
- ID
- 56795
- Category
- science
- Program ID
- 111.24H1.005
- 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/ STRAUBMEIER/ BRANDNER/ ROUSSELET-PERRAUT/ PERRIN/ GARCIA/ ECKART/ DE ZEEUW/ WIDMANN/ PAUMARD/ HORROBIN/ VINCENT/ DRESCHER/ BOURDAROT/ CAO/ LUTZ/ STURM/ RIBEIRO
Target
- ID
- 41849
- Name
- IRS16C
- RA
- 266.4171083333333
- DEC
- -29.007645
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 | 53.8060 | 53.5400 | 36.7000 | 37.1000 |
| U1-U3 | 96.1750 | 95.5620 | 43.0000 | 43.4000 |
| U1-U4 | 116.4230 | 115.0030 | 72.7630 | 73.3390 |
| U2-U3 | 43.1010 | 42.7480 | 50.8000 | 51.2000 |
| U2-U4 | 79.5390 | 78.5060 | 96.2490 | 97.1270 |
| U3-U4 | 58.0620 | 57.6040 | 128.1630 | 129.3170 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24H1.005 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60187.07957904 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.41685 |
| DEC | -29.00732 |
| 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 | 53.806 |
| HIERARCH ESO ISS PBL12 END | 53.54 |
| HIERARCH ESO ISS PBLA12 START | 36.7 |
| HIERARCH ESO ISS PBLA12 END | 37.1 |
| HIERARCH ESO ISS PBL13 START | 96.175 |
| HIERARCH ESO ISS PBL13 END | 95.562 |
| HIERARCH ESO ISS PBLA13 START | 43.0 |
| HIERARCH ESO ISS PBLA13 END | 43.4 |
| HIERARCH ESO ISS PBL14 START | 116.423 |
| HIERARCH ESO ISS PBL14 END | 115.003 |
| HIERARCH ESO ISS PBLA14 START | 72.763 |
| HIERARCH ESO ISS PBLA14 END | 73.339 |
| HIERARCH ESO ISS PBL23 START | 43.101 |
| HIERARCH ESO ISS PBL23 END | 42.748 |
| HIERARCH ESO ISS PBLA23 START | 50.8 |
| HIERARCH ESO ISS PBLA23 END | 51.2 |
| HIERARCH ESO ISS PBL24 START | 79.539 |
| HIERARCH ESO ISS PBL24 END | 78.506 |
| HIERARCH ESO ISS PBLA24 START | 96.249 |
| HIERARCH ESO ISS PBLA24 END | 97.127 |
| HIERARCH ESO ISS PBL34 START | 58.062 |
| HIERARCH ESO ISS PBL34 END | 57.604 |
| HIERARCH ESO ISS PBLA34 START | 128.163 |
| HIERARCH ESO ISS PBLA34 END | 129.317 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002011 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002636 |
| HIERARCH ESO ISS AMBI TEMP | 14.51 |
| HIERARCH ESO ISS AMBI FWHM START | 1.4 |
| HIERARCH ESO ISS AMBI FWHM END | 1.16 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |