Exposure
- ID
- GRAVI.2021-05-25T08:27:42.241_2
- Header ID
- GRAVI.2021-05-25T08:27:42.241
- Date updated
- 2021-05-25 08:40:30 UTC+0000
- Release date
- 2022-05-25 08:40:30 UTC+0000
- UTC Start
- 2021-05-25 08:27:42.241
- UTC End
- 2021-05-25 08:33:02.241
- MJD Start
- 59359.35257223
- MJD End
- 59359.3562759337
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0035645
- Ambient temperature (°C)
- 12.04
- Seeing (arcsec)
- 0.8
Observation
- ID
- 47451
- Category
- science
- Program ID
- 105.20B2.002
- Program Title
- THE GALACTIC CENTER AT UNPRECEDENTED RESOLUTION - PROBING GENERAL RELATIVITY WITH GRAVITY
- Program Type
- GTO
- PI / COI
- EISENHAUER/ GILLESSEN/ PERRIN/ STRAUBMEIER/ ROUSSELET-PERRAUT/ GARCIA/ BRANDNER/ GENZEL/ ECKART/ PAUMARD/ CL'ENET/ GAO/ HABIBI/ HORROBIN/ KERVELLA/ OTT/ WIDMANN/ VON FELLENBERG/ HENNING/ PFUHL/ WAISBERG/ DEXTER/ DE ZEEUW/ AMORIM
Target
- ID
- 35588
- Name
- IRS16C
- RA
- 266.4171125
- DEC
- -29.0076491944444
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 | 53.3970 | 53.1440 | 37.3000 | 37.6000 |
| U1-U3 | 95.2340 | 94.6510 | 43.6000 | 43.9000 |
| U1-U4 | 114.2450 | 112.9040 | 73.6330 | 74.1340 |
| U2-U3 | 42.5600 | 42.2260 | 51.5000 | 51.8000 |
| U2-U4 | 77.9550 | 76.9850 | 97.5860 | 98.3830 |
| U3-U4 | 57.3620 | 56.9410 | 129.9230 | 130.9790 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 105.20B2.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59359.35257223 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S2 |
| RA | 266.417087 |
| DEC | -29.00718 |
| 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 | 342.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 32 |
| HIERARCH ESO ISS PBL12 START | 53.397 |
| HIERARCH ESO ISS PBL12 END | 53.144 |
| HIERARCH ESO ISS PBLA12 START | 37.3 |
| HIERARCH ESO ISS PBLA12 END | 37.6 |
| HIERARCH ESO ISS PBL13 START | 95.234 |
| HIERARCH ESO ISS PBL13 END | 94.651 |
| HIERARCH ESO ISS PBLA13 START | 43.6 |
| HIERARCH ESO ISS PBLA13 END | 43.9 |
| HIERARCH ESO ISS PBL14 START | 114.245 |
| HIERARCH ESO ISS PBL14 END | 112.904 |
| HIERARCH ESO ISS PBLA14 START | 73.633 |
| HIERARCH ESO ISS PBLA14 END | 74.134 |
| HIERARCH ESO ISS PBL23 START | 42.56 |
| HIERARCH ESO ISS PBL23 END | 42.226 |
| HIERARCH ESO ISS PBLA23 START | 51.5 |
| HIERARCH ESO ISS PBLA23 END | 51.8 |
| HIERARCH ESO ISS PBL24 START | 77.955 |
| HIERARCH ESO ISS PBL24 END | 76.985 |
| HIERARCH ESO ISS PBLA24 START | 97.586 |
| HIERARCH ESO ISS PBLA24 END | 98.383 |
| HIERARCH ESO ISS PBL34 START | 57.362 |
| HIERARCH ESO ISS PBL34 END | 56.941 |
| HIERARCH ESO ISS PBLA34 START | 129.923 |
| HIERARCH ESO ISS PBLA34 END | 130.979 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003402 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003727 |
| HIERARCH ESO ISS AMBI TEMP | 12.04 |
| HIERARCH ESO ISS AMBI FWHM START | 0.86 |
| HIERARCH ESO ISS AMBI FWHM END | 0.74 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5371 |