Exposure
- ID
- GRAVI.2023-09-02T01:41:04.756_2
- Header ID
- GRAVI.2023-09-02T01:41:04.756
- Date updated
- 2023-09-02 01:55:33 UTC+0000
- Release date
- 2024-09-02 01:55:33 UTC+0000
- UTC Start
- 2023-09-02 01:41:04.756
- UTC End
- 2023-09-02 01:47:04.756
- MJD Start
- 60189.07019393
- MJD End
- 60189.07436059666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002834
- Ambient temperature (°C)
- 11.25
- Seeing (arcsec)
- 0.89
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 | 54.0250 | 53.7710 | 36.3000 | 36.7000 |
| U1-U3 | 96.6810 | 96.0960 | 42.6000 | 43.0000 |
| U1-U4 | 117.5970 | 116.2400 | 72.2590 | 72.8390 |
| U2-U3 | 43.3920 | 43.0560 | 50.5000 | 50.9000 |
| U2-U4 | 80.3980 | 79.4060 | 95.5010 | 96.3640 |
| U3-U4 | 58.4470 | 58.0020 | 127.1860 | 128.3140 |
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 | 60189.07019393 |
| 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 | 54.025 |
| HIERARCH ESO ISS PBL12 END | 53.771 |
| HIERARCH ESO ISS PBLA12 START | 36.3 |
| HIERARCH ESO ISS PBLA12 END | 36.7 |
| HIERARCH ESO ISS PBL13 START | 96.681 |
| HIERARCH ESO ISS PBL13 END | 96.096 |
| HIERARCH ESO ISS PBLA13 START | 42.6 |
| HIERARCH ESO ISS PBLA13 END | 43.0 |
| HIERARCH ESO ISS PBL14 START | 117.597 |
| HIERARCH ESO ISS PBL14 END | 116.24 |
| HIERARCH ESO ISS PBLA14 START | 72.259 |
| HIERARCH ESO ISS PBLA14 END | 72.839 |
| HIERARCH ESO ISS PBL23 START | 43.392 |
| HIERARCH ESO ISS PBL23 END | 43.056 |
| HIERARCH ESO ISS PBLA23 START | 50.5 |
| HIERARCH ESO ISS PBLA23 END | 50.9 |
| HIERARCH ESO ISS PBL24 START | 80.398 |
| HIERARCH ESO ISS PBL24 END | 79.406 |
| HIERARCH ESO ISS PBLA24 START | 95.501 |
| HIERARCH ESO ISS PBLA24 END | 96.364 |
| HIERARCH ESO ISS PBL34 START | 58.447 |
| HIERARCH ESO ISS PBL34 END | 58.002 |
| HIERARCH ESO ISS PBLA34 START | 127.186 |
| HIERARCH ESO ISS PBLA34 END | 128.314 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002922 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002746 |
| HIERARCH ESO ISS AMBI TEMP | 11.25 |
| HIERARCH ESO ISS AMBI FWHM START | 0.88 |
| HIERARCH ESO ISS AMBI FWHM END | 0.9 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5209 |