Exposure
- ID
- GRAVI.2021-03-31T09:01:24.872_2
- Header ID
- GRAVI.2021-03-31T09:01:24.872
- Date updated
- 2021-09-29 14:27:08 UTC+0000
- Release date
- 2022-03-31 09:20:20 UTC+0000
- UTC Start
- 2021-03-31 09:01:24.872
- UTC End
- 2021-03-31 09:06:44.872
- MJD Start
- 59304.37598231
- MJD End
- 59304.3796860137
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002468
- Ambient temperature (°C)
- 10.94
- Seeing (arcsec)
- 0.53
Observation
- ID
- 47323
- Category
- science
- Program ID
- 106.20XY.001
- Program Title
- THE GALACTIC CENTER AT UNPRECEDENTED RESOLUTION - PROBING GENERAL RELATIVITY WITH GRAVITY
- Program Type
- GTO
- PI / COI
- EISENHAUER/ GILLESSEN/ GENZEL/ STRAUBMEIER/ ROUSSELET-PERRAUT/ BRANDNER/ GARCIA/ ECKART/ KERVELLA/ OTT/ DE ZEEUW/ STADLER/ VON FELLENBERG/ WIDMANN/ HABIBI/ HENNING/ PAUMARD/ PERRIN/ HORROBIN/ CL\XC3\XA9NET
Target
- ID
- 35487
- Name
- IRS16C
- RA
- 266.417116666667
- DEC
- -29.0076493888889
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 | 56.5580 | 56.5600 | 20.2000 | 20.9000 |
| U1-U3 | 102.3830 | 102.4100 | 26.4000 | 27.1000 |
| U1-U4 | 129.1610 | 129.4340 | 53.9590 | 54.7430 |
| U2-U3 | 46.5580 | 46.5890 | 33.9000 | 34.6000 |
| U2-U4 | 87.9820 | 88.3020 | 74.9130 | 75.6660 |
| U3-U4 | 61.0520 | 61.3180 | 104.9480 | 105.5770 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 106.20XY.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59304.37598231 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S2 |
| RA | 266.417031 |
| DEC | -29.00713 |
| 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 | 56.558 |
| HIERARCH ESO ISS PBL12 END | 56.56 |
| HIERARCH ESO ISS PBLA12 START | 20.2 |
| HIERARCH ESO ISS PBLA12 END | 20.9 |
| HIERARCH ESO ISS PBL13 START | 102.383 |
| HIERARCH ESO ISS PBL13 END | 102.41 |
| HIERARCH ESO ISS PBLA13 START | 26.4 |
| HIERARCH ESO ISS PBLA13 END | 27.1 |
| HIERARCH ESO ISS PBL14 START | 129.161 |
| HIERARCH ESO ISS PBL14 END | 129.434 |
| HIERARCH ESO ISS PBLA14 START | 53.959 |
| HIERARCH ESO ISS PBLA14 END | 54.743 |
| HIERARCH ESO ISS PBL23 START | 46.558 |
| HIERARCH ESO ISS PBL23 END | 46.589 |
| HIERARCH ESO ISS PBLA23 START | 33.9 |
| HIERARCH ESO ISS PBLA23 END | 34.6 |
| HIERARCH ESO ISS PBL24 START | 87.982 |
| HIERARCH ESO ISS PBL24 END | 88.302 |
| HIERARCH ESO ISS PBLA24 START | 74.913 |
| HIERARCH ESO ISS PBLA24 END | 75.666 |
| HIERARCH ESO ISS PBL34 START | 61.052 |
| HIERARCH ESO ISS PBL34 END | 61.318 |
| HIERARCH ESO ISS PBLA34 START | 104.948 |
| HIERARCH ESO ISS PBLA34 END | 105.577 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002468 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002468 |
| HIERARCH ESO ISS AMBI TEMP | 10.94 |
| HIERARCH ESO ISS AMBI FWHM START | 0.53 |
| HIERARCH ESO ISS AMBI FWHM END | 0.53 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1080 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5378 |