Exposure
- ID
- GRAVI.2023-08-03T03:14:34.362_2
- Header ID
- GRAVI.2023-08-03T03:14:34.362
- Date updated
- 2023-08-03 03:30:39 UTC+0000
- Release date
- 2024-08-03 03:30:39 UTC+0000
- UTC Start
- 2023-08-03 03:14:34.362
- UTC End
- 2023-08-03 03:20:34.362
- MJD Start
- 60159.13511993
- MJD End
- 60159.13928659666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0053495
- Ambient temperature (°C)
- 18.79
- 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 | 54.8540 | 54.6540 | 34.5000 | 35.0000 |
| U1-U3 | 98.6030 | 98.1380 | 40.9000 | 41.4000 |
| U1-U4 | 122.0830 | 120.9960 | 70.0110 | 70.6130 |
| U2-U3 | 44.5010 | 44.2320 | 48.7000 | 49.2000 |
| U2-U4 | 83.7000 | 82.8970 | 92.3620 | 93.1750 |
| U3-U4 | 59.9630 | 59.5890 | 123.1720 | 124.1970 |
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 | 60159.13511993 |
| 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 | 54.854 |
| HIERARCH ESO ISS PBL12 END | 54.654 |
| HIERARCH ESO ISS PBLA12 START | 34.5 |
| HIERARCH ESO ISS PBLA12 END | 35.0 |
| HIERARCH ESO ISS PBL13 START | 98.603 |
| HIERARCH ESO ISS PBL13 END | 98.138 |
| HIERARCH ESO ISS PBLA13 START | 40.9 |
| HIERARCH ESO ISS PBLA13 END | 41.4 |
| HIERARCH ESO ISS PBL14 START | 122.083 |
| HIERARCH ESO ISS PBL14 END | 120.996 |
| HIERARCH ESO ISS PBLA14 START | 70.011 |
| HIERARCH ESO ISS PBLA14 END | 70.613 |
| HIERARCH ESO ISS PBL23 START | 44.501 |
| HIERARCH ESO ISS PBL23 END | 44.232 |
| HIERARCH ESO ISS PBLA23 START | 48.7 |
| HIERARCH ESO ISS PBLA23 END | 49.2 |
| HIERARCH ESO ISS PBL24 START | 83.7 |
| HIERARCH ESO ISS PBL24 END | 82.897 |
| HIERARCH ESO ISS PBLA24 START | 92.362 |
| HIERARCH ESO ISS PBLA24 END | 93.175 |
| HIERARCH ESO ISS PBL34 START | 59.963 |
| HIERARCH ESO ISS PBL34 END | 59.589 |
| HIERARCH ESO ISS PBLA34 START | 123.172 |
| HIERARCH ESO ISS PBLA34 END | 124.197 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005534 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005165 |
| HIERARCH ESO ISS AMBI TEMP | 18.79 |
| HIERARCH ESO ISS AMBI FWHM START | 0.55 |
| HIERARCH ESO ISS AMBI FWHM END | 0.64 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |