Exposure
- ID
- GRAVI.2023-08-03T02:53:43.309_2
- Header ID
- GRAVI.2023-08-03T02:53:43.309
- Date updated
- 2023-08-03 03:10:29 UTC+0000
- Release date
- 2024-08-03 03:10:29 UTC+0000
- UTC Start
- 2023-08-03 02:53:43.309
- UTC End
- 2023-08-03 02:59:43.309
- MJD Start
- 60159.12064015
- MJD End
- 60159.12480681667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005314
- Ambient temperature (°C)
- 18.8
- Seeing (arcsec)
- 0.5549999999999999
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 | 55.4100 | 55.2500 | 32.9000 | 33.4000 |
| U1-U3 | 99.8960 | 99.5250 | 39.2000 | 39.8000 |
| U1-U4 | 125.1110 | 124.2440 | 68.0140 | 68.6460 |
| U2-U3 | 45.2480 | 45.0340 | 47.0000 | 47.6000 |
| U2-U4 | 85.9410 | 85.3000 | 89.7990 | 90.5910 |
| U3-U4 | 61.0130 | 60.7120 | 120.0260 | 120.9830 |
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 | 60159.12064015 |
| 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 | 55.41 |
| HIERARCH ESO ISS PBL12 END | 55.25 |
| HIERARCH ESO ISS PBLA12 START | 32.9 |
| HIERARCH ESO ISS PBLA12 END | 33.4 |
| HIERARCH ESO ISS PBL13 START | 99.896 |
| HIERARCH ESO ISS PBL13 END | 99.525 |
| HIERARCH ESO ISS PBLA13 START | 39.2 |
| HIERARCH ESO ISS PBLA13 END | 39.8 |
| HIERARCH ESO ISS PBL14 START | 125.111 |
| HIERARCH ESO ISS PBL14 END | 124.244 |
| HIERARCH ESO ISS PBLA14 START | 68.014 |
| HIERARCH ESO ISS PBLA14 END | 68.646 |
| HIERARCH ESO ISS PBL23 START | 45.248 |
| HIERARCH ESO ISS PBL23 END | 45.034 |
| HIERARCH ESO ISS PBLA23 START | 47.0 |
| HIERARCH ESO ISS PBLA23 END | 47.6 |
| HIERARCH ESO ISS PBL24 START | 85.941 |
| HIERARCH ESO ISS PBL24 END | 85.3 |
| HIERARCH ESO ISS PBLA24 START | 89.799 |
| HIERARCH ESO ISS PBLA24 END | 90.591 |
| HIERARCH ESO ISS PBL34 START | 61.013 |
| HIERARCH ESO ISS PBL34 END | 60.712 |
| HIERARCH ESO ISS PBLA34 START | 120.026 |
| HIERARCH ESO ISS PBLA34 END | 120.983 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005594 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005034 |
| HIERARCH ESO ISS AMBI TEMP | 18.8 |
| HIERARCH ESO ISS AMBI FWHM START | 0.54 |
| 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 |