Exposure
- ID
- GRAVI.2023-08-03T00:47:24.989_2
- Header ID
- GRAVI.2023-08-03T00:47:24.989
- Date updated
- 2023-08-03 01:05:34 UTC+0000
- Release date
- 2024-08-03 01:05:34 UTC+0000
- UTC Start
- 2023-08-03 00:47:24.989
- UTC End
- 2023-08-03 00:53:24.989
- MJD Start
- 60159.03292811
- MJD End
- 60159.037094776664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0059495
- Ambient temperature (°C)
- 18.69
- Seeing (arcsec)
- 0.6
Observation
- ID
- 56474
- Category
- science
- Program ID
- 111.24H1.004
- 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 | 56.5540 | 56.5590 | 19.6000 | 20.4000 |
| U1-U3 | 102.3540 | 102.3930 | 25.8000 | 26.6000 |
| U1-U4 | 128.9140 | 129.2550 | 53.3110 | 54.2110 |
| U2-U3 | 46.5290 | 46.5690 | 33.3000 | 34.1000 |
| U2-U4 | 87.6970 | 88.0920 | 74.2950 | 75.1550 |
| U3-U4 | 60.8160 | 61.1420 | 104.4390 | 105.1470 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24H1.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60159.03292811 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.41687 |
| 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 | 56.554 |
| HIERARCH ESO ISS PBL12 END | 56.559 |
| HIERARCH ESO ISS PBLA12 START | 19.6 |
| HIERARCH ESO ISS PBLA12 END | 20.4 |
| HIERARCH ESO ISS PBL13 START | 102.354 |
| HIERARCH ESO ISS PBL13 END | 102.393 |
| HIERARCH ESO ISS PBLA13 START | 25.8 |
| HIERARCH ESO ISS PBLA13 END | 26.6 |
| HIERARCH ESO ISS PBL14 START | 128.914 |
| HIERARCH ESO ISS PBL14 END | 129.255 |
| HIERARCH ESO ISS PBLA14 START | 53.311 |
| HIERARCH ESO ISS PBLA14 END | 54.211 |
| HIERARCH ESO ISS PBL23 START | 46.529 |
| HIERARCH ESO ISS PBL23 END | 46.569 |
| HIERARCH ESO ISS PBLA23 START | 33.3 |
| HIERARCH ESO ISS PBLA23 END | 34.1 |
| HIERARCH ESO ISS PBL24 START | 87.697 |
| HIERARCH ESO ISS PBL24 END | 88.092 |
| HIERARCH ESO ISS PBLA24 START | 74.295 |
| HIERARCH ESO ISS PBLA24 END | 75.155 |
| HIERARCH ESO ISS PBL34 START | 60.816 |
| HIERARCH ESO ISS PBL34 END | 61.142 |
| HIERARCH ESO ISS PBLA34 START | 104.439 |
| HIERARCH ESO ISS PBLA34 END | 105.147 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005854 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006045 |
| HIERARCH ESO ISS AMBI TEMP | 18.69 |
| HIERARCH ESO ISS AMBI FWHM START | 0.59 |
| HIERARCH ESO ISS AMBI FWHM END | 0.61 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |