Exposure
- ID
- GRAVI.2023-08-03T02:37:13.267_2
- Header ID
- GRAVI.2023-08-03T02:37:13.267
- Date updated
- 2023-08-03 02:50:35 UTC+0000
- Release date
- 2024-08-03 02:50:35 UTC+0000
- UTC Start
- 2023-08-03 02:37:13.267
- UTC End
- 2023-08-03 02:43:13.267
- MJD Start
- 60159.10918133
- MJD End
- 60159.11334799667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004855
- Ambient temperature (°C)
- 18.77
- Seeing (arcsec)
- 0.575
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 | 55.7600 | 55.6310 | 31.4000 | 32.0000 |
| U1-U3 | 100.7110 | 100.4130 | 37.8000 | 38.4000 |
| U1-U4 | 127.0010 | 126.3120 | 66.3630 | 67.0200 |
| U2-U3 | 45.7180 | 45.5460 | 45.6000 | 46.2000 |
| U2-U4 | 87.3320 | 86.8270 | 87.8060 | 88.5860 |
| U3-U4 | 61.6630 | 61.4280 | 117.6800 | 118.5870 |
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 | 60159.10918133 |
| 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 | 55.76 |
| HIERARCH ESO ISS PBL12 END | 55.631 |
| HIERARCH ESO ISS PBLA12 START | 31.4 |
| HIERARCH ESO ISS PBLA12 END | 32.0 |
| HIERARCH ESO ISS PBL13 START | 100.711 |
| HIERARCH ESO ISS PBL13 END | 100.413 |
| HIERARCH ESO ISS PBLA13 START | 37.8 |
| HIERARCH ESO ISS PBLA13 END | 38.4 |
| HIERARCH ESO ISS PBL14 START | 127.001 |
| HIERARCH ESO ISS PBL14 END | 126.312 |
| HIERARCH ESO ISS PBLA14 START | 66.363 |
| HIERARCH ESO ISS PBLA14 END | 67.02 |
| HIERARCH ESO ISS PBL23 START | 45.718 |
| HIERARCH ESO ISS PBL23 END | 45.546 |
| HIERARCH ESO ISS PBLA23 START | 45.6 |
| HIERARCH ESO ISS PBLA23 END | 46.2 |
| HIERARCH ESO ISS PBL24 START | 87.332 |
| HIERARCH ESO ISS PBL24 END | 86.827 |
| HIERARCH ESO ISS PBLA24 START | 87.806 |
| HIERARCH ESO ISS PBLA24 END | 88.586 |
| HIERARCH ESO ISS PBL34 START | 61.663 |
| HIERARCH ESO ISS PBL34 END | 61.428 |
| HIERARCH ESO ISS PBLA34 START | 117.68 |
| HIERARCH ESO ISS PBLA34 END | 118.587 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004814 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004896 |
| HIERARCH ESO ISS AMBI TEMP | 18.77 |
| HIERARCH ESO ISS AMBI FWHM START | 0.56 |
| HIERARCH ESO ISS AMBI FWHM END | 0.59 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |