Exposure
- ID
- GRAVI.2023-08-03T03:38:04.421_2
- Header ID
- GRAVI.2023-08-03T03:38:04.421
- Date updated
- 2023-08-03 03:55:36 UTC+0000
- Release date
- 2024-08-03 03:55:35 UTC+0000
- UTC Start
- 2023-08-03 03:38:04.421
- UTC End
- 2023-08-03 03:44:04.421
- MJD Start
- 60159.15144006
- MJD End
- 60159.155606726665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0051649999999999995
- Ambient temperature (°C)
- 18.8
- Seeing (arcsec)
- 0.66
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 | 54.0600 | 53.8100 | 36.2000 | 36.7000 |
| U1-U3 | 96.7640 | 96.1860 | 42.5000 | 43.0000 |
| U1-U4 | 117.7900 | 116.4480 | 72.1720 | 72.7510 |
| U2-U3 | 43.4400 | 43.1070 | 50.4000 | 50.8000 |
| U2-U4 | 80.5390 | 79.5580 | 95.3750 | 96.2320 |
| U3-U4 | 58.5100 | 58.0700 | 127.0220 | 128.1410 |
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 | 60159.15144006 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.417034 |
| DEC | -29.00737 |
| 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 | 54.06 |
| HIERARCH ESO ISS PBL12 END | 53.81 |
| HIERARCH ESO ISS PBLA12 START | 36.2 |
| HIERARCH ESO ISS PBLA12 END | 36.7 |
| HIERARCH ESO ISS PBL13 START | 96.764 |
| HIERARCH ESO ISS PBL13 END | 96.186 |
| HIERARCH ESO ISS PBLA13 START | 42.5 |
| HIERARCH ESO ISS PBLA13 END | 43.0 |
| HIERARCH ESO ISS PBL14 START | 117.79 |
| HIERARCH ESO ISS PBL14 END | 116.448 |
| HIERARCH ESO ISS PBLA14 START | 72.172 |
| HIERARCH ESO ISS PBLA14 END | 72.751 |
| HIERARCH ESO ISS PBL23 START | 43.44 |
| HIERARCH ESO ISS PBL23 END | 43.107 |
| HIERARCH ESO ISS PBLA23 START | 50.4 |
| HIERARCH ESO ISS PBLA23 END | 50.8 |
| HIERARCH ESO ISS PBL24 START | 80.539 |
| HIERARCH ESO ISS PBL24 END | 79.558 |
| HIERARCH ESO ISS PBLA24 START | 95.375 |
| HIERARCH ESO ISS PBLA24 END | 96.232 |
| HIERARCH ESO ISS PBL34 START | 58.51 |
| HIERARCH ESO ISS PBL34 END | 58.07 |
| HIERARCH ESO ISS PBLA34 START | 127.022 |
| HIERARCH ESO ISS PBLA34 END | 128.141 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00494 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00539 |
| HIERARCH ESO ISS AMBI TEMP | 18.8 |
| HIERARCH ESO ISS AMBI FWHM START | 0.67 |
| HIERARCH ESO ISS AMBI FWHM END | 0.65 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |