Exposure
- ID
- GRAVI.2023-09-02T01:49:22.776_2
- Header ID
- GRAVI.2023-09-02T01:49:22.776
- Date updated
- 2023-09-02 02:05:14 UTC+0000
- Release date
- 2024-09-02 02:05:14 UTC+0000
- UTC Start
- 2023-09-02 01:49:22.776
- UTC End
- 2023-09-02 01:55:22.776
- MJD Start
- 60189.07595806
- MJD End
- 60189.080124726665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0027405
- Ambient temperature (°C)
- 11.23
- Seeing (arcsec)
- 0.87
Observation
- ID
- 56827
- 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
- 42114
- Name
- IRS16C
- RA
- 266.4171083333333
- DEC
- -29.007644694444444
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 | 53.7000 | 53.4280 | 36.8000 | 37.2000 |
| U1-U3 | 95.9310 | 95.3050 | 43.1000 | 43.5000 |
| U1-U4 | 115.8570 | 114.4110 | 72.9960 | 73.5700 |
| U2-U3 | 42.9600 | 42.6010 | 51.0000 | 51.4000 |
| U2-U4 | 79.1270 | 78.0760 | 96.6030 | 97.4870 |
| U3-U4 | 57.8780 | 57.4150 | 128.6270 | 129.7910 |
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 | 60189.07595806 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.416848 |
| DEC | -29.00725 |
| 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 | 53.7 |
| HIERARCH ESO ISS PBL12 END | 53.428 |
| HIERARCH ESO ISS PBLA12 START | 36.8 |
| HIERARCH ESO ISS PBLA12 END | 37.2 |
| HIERARCH ESO ISS PBL13 START | 95.931 |
| HIERARCH ESO ISS PBL13 END | 95.305 |
| HIERARCH ESO ISS PBLA13 START | 43.1 |
| HIERARCH ESO ISS PBLA13 END | 43.5 |
| HIERARCH ESO ISS PBL14 START | 115.857 |
| HIERARCH ESO ISS PBL14 END | 114.411 |
| HIERARCH ESO ISS PBLA14 START | 72.996 |
| HIERARCH ESO ISS PBLA14 END | 73.57 |
| HIERARCH ESO ISS PBL23 START | 42.96 |
| HIERARCH ESO ISS PBL23 END | 42.601 |
| HIERARCH ESO ISS PBLA23 START | 51.0 |
| HIERARCH ESO ISS PBLA23 END | 51.4 |
| HIERARCH ESO ISS PBL24 START | 79.127 |
| HIERARCH ESO ISS PBL24 END | 78.076 |
| HIERARCH ESO ISS PBLA24 START | 96.603 |
| HIERARCH ESO ISS PBLA24 END | 97.487 |
| HIERARCH ESO ISS PBL34 START | 57.878 |
| HIERARCH ESO ISS PBL34 END | 57.415 |
| HIERARCH ESO ISS PBLA34 START | 128.627 |
| HIERARCH ESO ISS PBLA34 END | 129.791 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002746 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002735 |
| HIERARCH ESO ISS AMBI TEMP | 11.23 |
| HIERARCH ESO ISS AMBI FWHM START | 0.9 |
| HIERARCH ESO ISS AMBI FWHM END | 0.84 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5209 |