Exposure
- ID
- GRAVI.2023-08-02T23:59:27.867_2
- Header ID
- GRAVI.2023-08-02T23:59:27.867
- Date updated
- 2023-08-03 00:15:26 UTC+0000
- Release date
- 2024-08-03 00:15:26 UTC+0000
- UTC Start
- 2023-08-02 23:59:27.867
- UTC End
- 2023-08-03 00:05:27.867
- MJD Start
- 60158.99962809
- MJD End
- 60159.00379475667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006032
- Ambient temperature (°C)
- 19.06
- Seeing (arcsec)
- 0.595
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 | 56.4350 | 56.4560 | 13.3000 | 14.2000 |
| U1-U3 | 101.8190 | 101.9090 | 19.2000 | 20.1000 |
| U1-U4 | 125.1030 | 125.7310 | 46.0130 | 47.0710 |
| U2-U3 | 46.0410 | 46.1210 | 26.4000 | 27.4000 |
| U2-U4 | 83.3690 | 84.0890 | 67.4520 | 68.4370 |
| U3-U4 | 57.2950 | 57.8850 | 99.3210 | 100.0070 |
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 | 60158.99962809 |
| 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 | 56.435 |
| HIERARCH ESO ISS PBL12 END | 56.456 |
| HIERARCH ESO ISS PBLA12 START | 13.3 |
| HIERARCH ESO ISS PBLA12 END | 14.2 |
| HIERARCH ESO ISS PBL13 START | 101.819 |
| HIERARCH ESO ISS PBL13 END | 101.909 |
| HIERARCH ESO ISS PBLA13 START | 19.2 |
| HIERARCH ESO ISS PBLA13 END | 20.1 |
| HIERARCH ESO ISS PBL14 START | 125.103 |
| HIERARCH ESO ISS PBL14 END | 125.731 |
| HIERARCH ESO ISS PBLA14 START | 46.013 |
| HIERARCH ESO ISS PBLA14 END | 47.071 |
| HIERARCH ESO ISS PBL23 START | 46.041 |
| HIERARCH ESO ISS PBL23 END | 46.121 |
| HIERARCH ESO ISS PBLA23 START | 26.4 |
| HIERARCH ESO ISS PBLA23 END | 27.4 |
| HIERARCH ESO ISS PBL24 START | 83.369 |
| HIERARCH ESO ISS PBL24 END | 84.089 |
| HIERARCH ESO ISS PBLA24 START | 67.452 |
| HIERARCH ESO ISS PBLA24 END | 68.437 |
| HIERARCH ESO ISS PBL34 START | 57.295 |
| HIERARCH ESO ISS PBL34 END | 57.885 |
| HIERARCH ESO ISS PBLA34 START | 99.321 |
| HIERARCH ESO ISS PBLA34 END | 100.007 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00581 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006254 |
| HIERARCH ESO ISS AMBI TEMP | 19.06 |
| HIERARCH ESO ISS AMBI FWHM START | 0.62 |
| HIERARCH ESO ISS AMBI FWHM END | 0.57 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |