Exposure
- ID
- GRAVI.2021-05-23T07:42:54.638_2
- Header ID
- GRAVI.2021-05-23T07:42:54.638
- Date updated
- 2021-05-23 07:55:27 UTC+0000
- Release date
- 2022-05-23 07:55:27 UTC+0000
- UTC Start
- 2021-05-23 07:42:54.638
- UTC End
- 2021-05-23 07:48:14.638
- MJD Start
- 59357.32146572
- MJD End
- 59357.3251694237
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008525
- Ambient temperature (°C)
- 11.44
- Seeing (arcsec)
- 0.285
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 | 55.2090 | 55.0550 | 33.5000 | 34.0000 |
| U1-U3 | 99.4300 | 99.0720 | 39.9000 | 40.4000 |
| U1-U4 | 124.0190 | 123.1810 | 68.8040 | 69.3520 |
| U2-U3 | 44.9780 | 44.7710 | 47.7000 | 48.2000 |
| U2-U4 | 85.1330 | 84.5120 | 90.7900 | 91.4950 |
| U3-U4 | 60.6330 | 60.3420 | 121.2260 | 122.0930 |
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 | 59357.32146572 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S2 |
| RA | 266.416924 |
| DEC | -29.00736 |
| 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 | 55.209 |
| HIERARCH ESO ISS PBL12 END | 55.055 |
| HIERARCH ESO ISS PBLA12 START | 33.5 |
| HIERARCH ESO ISS PBLA12 END | 34.0 |
| HIERARCH ESO ISS PBL13 START | 99.43 |
| HIERARCH ESO ISS PBL13 END | 99.072 |
| HIERARCH ESO ISS PBLA13 START | 39.9 |
| HIERARCH ESO ISS PBLA13 END | 40.4 |
| HIERARCH ESO ISS PBL14 START | 124.019 |
| HIERARCH ESO ISS PBL14 END | 123.181 |
| HIERARCH ESO ISS PBLA14 START | 68.804 |
| HIERARCH ESO ISS PBLA14 END | 69.352 |
| HIERARCH ESO ISS PBL23 START | 44.978 |
| HIERARCH ESO ISS PBL23 END | 44.771 |
| HIERARCH ESO ISS PBLA23 START | 47.7 |
| HIERARCH ESO ISS PBLA23 END | 48.2 |
| HIERARCH ESO ISS PBL24 START | 85.133 |
| HIERARCH ESO ISS PBL24 END | 84.512 |
| HIERARCH ESO ISS PBLA24 START | 90.79 |
| HIERARCH ESO ISS PBLA24 END | 91.495 |
| HIERARCH ESO ISS PBL34 START | 60.633 |
| HIERARCH ESO ISS PBL34 END | 60.342 |
| HIERARCH ESO ISS PBLA34 START | 121.226 |
| HIERARCH ESO ISS PBLA34 END | 122.093 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007835 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.009215 |
| HIERARCH ESO ISS AMBI TEMP | 11.44 |
| HIERARCH ESO ISS AMBI FWHM START | 0.34 |
| HIERARCH ESO ISS AMBI FWHM END | 0.23 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5371 |