Exposure
- ID
- GRAVI.2021-05-24T08:22:57.025_2
- Header ID
- GRAVI.2021-05-24T08:22:57.025
- Date updated
- 2021-05-24 08:35:31 UTC+0000
- Release date
- 2022-05-24 08:35:31 UTC+0000
- UTC Start
- 2021-05-24 08:22:57.025
- UTC End
- 2021-05-24 08:28:17.025
- MJD Start
- 59358.34927112
- MJD End
- 59358.3529748237
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0034445
- Ambient temperature (°C)
- 11.47
- Seeing (arcsec)
- 0.975
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 | 53.7600 | 53.5240 | 36.7000 | 37.1000 |
| U1-U3 | 96.0700 | 95.5260 | 43.0000 | 43.4000 |
| U1-U4 | 116.1780 | 114.9190 | 72.8630 | 73.3700 |
| U2-U3 | 43.0410 | 42.7280 | 50.9000 | 51.3000 |
| U2-U4 | 79.3600 | 78.4440 | 96.4010 | 97.1770 |
| U3-U4 | 57.9820 | 57.5760 | 128.3630 | 129.3840 |
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 | 59358.34927112 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S2 |
| RA | 266.416898 |
| DEC | -29.00719 |
| 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 | 53.76 |
| HIERARCH ESO ISS PBL12 END | 53.524 |
| HIERARCH ESO ISS PBLA12 START | 36.7 |
| HIERARCH ESO ISS PBLA12 END | 37.1 |
| HIERARCH ESO ISS PBL13 START | 96.07 |
| HIERARCH ESO ISS PBL13 END | 95.526 |
| HIERARCH ESO ISS PBLA13 START | 43.0 |
| HIERARCH ESO ISS PBLA13 END | 43.4 |
| HIERARCH ESO ISS PBL14 START | 116.178 |
| HIERARCH ESO ISS PBL14 END | 114.919 |
| HIERARCH ESO ISS PBLA14 START | 72.863 |
| HIERARCH ESO ISS PBLA14 END | 73.37 |
| HIERARCH ESO ISS PBL23 START | 43.041 |
| HIERARCH ESO ISS PBL23 END | 42.728 |
| HIERARCH ESO ISS PBLA23 START | 50.9 |
| HIERARCH ESO ISS PBLA23 END | 51.3 |
| HIERARCH ESO ISS PBL24 START | 79.36 |
| HIERARCH ESO ISS PBL24 END | 78.444 |
| HIERARCH ESO ISS PBLA24 START | 96.401 |
| HIERARCH ESO ISS PBLA24 END | 97.177 |
| HIERARCH ESO ISS PBL34 START | 57.982 |
| HIERARCH ESO ISS PBL34 END | 57.576 |
| HIERARCH ESO ISS PBLA34 START | 128.363 |
| HIERARCH ESO ISS PBLA34 END | 129.384 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003852 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003037 |
| HIERARCH ESO ISS AMBI TEMP | 11.47 |
| HIERARCH ESO ISS AMBI FWHM START | 0.89 |
| HIERARCH ESO ISS AMBI FWHM END | 1.06 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5371 |