Exposure
- ID
- GRAVI.2023-07-31T02:32:23.305_2
- Header ID
- GRAVI.2023-07-31T02:32:23.305
- Date updated
- 2023-07-31 02:50:21 UTC+0000
- Release date
- 2024-07-31 02:50:21 UTC+0000
- UTC Start
- 2023-07-31 02:32:23.305
- UTC End
- 2023-07-31 02:38:23.305
- MJD Start
- 60156.10582529
- MJD End
- 60156.10999195666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003784
- Ambient temperature (°C)
- 17.95
- Seeing (arcsec)
- 1.105
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 | 56.0380 | 55.9380 | 29.9000 | 30.5000 |
| U1-U3 | 101.3540 | 101.1230 | 36.3000 | 36.9000 |
| U1-U4 | 128.4500 | 127.9370 | 64.6430 | 65.3250 |
| U2-U3 | 46.0860 | 45.9540 | 44.0000 | 44.7000 |
| U2-U4 | 88.3770 | 88.0110 | 85.8280 | 86.6020 |
| U3-U4 | 62.1320 | 61.9720 | 115.4470 | 116.3080 |
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 | 60156.10582529 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.41672 |
| DEC | -29.00715 |
| 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 | 56.038 |
| HIERARCH ESO ISS PBL12 END | 55.938 |
| HIERARCH ESO ISS PBLA12 START | 29.9 |
| HIERARCH ESO ISS PBLA12 END | 30.5 |
| HIERARCH ESO ISS PBL13 START | 101.354 |
| HIERARCH ESO ISS PBL13 END | 101.123 |
| HIERARCH ESO ISS PBLA13 START | 36.3 |
| HIERARCH ESO ISS PBLA13 END | 36.9 |
| HIERARCH ESO ISS PBL14 START | 128.45 |
| HIERARCH ESO ISS PBL14 END | 127.937 |
| HIERARCH ESO ISS PBLA14 START | 64.643 |
| HIERARCH ESO ISS PBLA14 END | 65.325 |
| HIERARCH ESO ISS PBL23 START | 46.086 |
| HIERARCH ESO ISS PBL23 END | 45.954 |
| HIERARCH ESO ISS PBLA23 START | 44.0 |
| HIERARCH ESO ISS PBLA23 END | 44.7 |
| HIERARCH ESO ISS PBL24 START | 88.377 |
| HIERARCH ESO ISS PBL24 END | 88.011 |
| HIERARCH ESO ISS PBLA24 START | 85.828 |
| HIERARCH ESO ISS PBLA24 END | 86.602 |
| HIERARCH ESO ISS PBL34 START | 62.132 |
| HIERARCH ESO ISS PBL34 END | 61.972 |
| HIERARCH ESO ISS PBLA34 START | 115.447 |
| HIERARCH ESO ISS PBLA34 END | 116.308 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004526 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003042 |
| HIERARCH ESO ISS AMBI TEMP | 17.95 |
| HIERARCH ESO ISS AMBI FWHM START | 0.92 |
| HIERARCH ESO ISS AMBI FWHM END | 1.29 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |