Exposure
- ID
- GRAVI.2021-05-23T04:33:51.162_2
- Header ID
- GRAVI.2021-05-23T04:33:51.162
- Date updated
- 2021-05-23 04:50:34 UTC+0000
- Release date
- 2022-05-23 04:50:34 UTC+0000
- UTC Start
- 2021-05-23 04:33:51.162
- UTC End
- 2021-05-23 04:39:11.162
- MJD Start
- 59357.19017549
- MJD End
- 59357.1938791937
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006808
- Ambient temperature (°C)
- 11.85
- Seeing (arcsec)
- 0.34
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 | 56.4130 | 56.4320 | 12.4000 | 13.2000 |
| U1-U3 | 101.7230 | 101.8050 | 18.2000 | 19.1000 |
| U1-U4 | 124.4220 | 125.0060 | 44.8950 | 45.8570 |
| U2-U3 | 45.9540 | 46.0280 | 25.3000 | 26.2000 |
| U2-U4 | 82.5840 | 83.2590 | 66.4110 | 67.3070 |
| U3-U4 | 56.6480 | 57.2050 | 98.6140 | 99.2230 |
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 | 59357.19017549 |
| 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 | 56.413 |
| HIERARCH ESO ISS PBL12 END | 56.432 |
| HIERARCH ESO ISS PBLA12 START | 12.4 |
| HIERARCH ESO ISS PBLA12 END | 13.2 |
| HIERARCH ESO ISS PBL13 START | 101.723 |
| HIERARCH ESO ISS PBL13 END | 101.805 |
| HIERARCH ESO ISS PBLA13 START | 18.2 |
| HIERARCH ESO ISS PBLA13 END | 19.1 |
| HIERARCH ESO ISS PBL14 START | 124.422 |
| HIERARCH ESO ISS PBL14 END | 125.006 |
| HIERARCH ESO ISS PBLA14 START | 44.895 |
| HIERARCH ESO ISS PBLA14 END | 45.857 |
| HIERARCH ESO ISS PBL23 START | 45.954 |
| HIERARCH ESO ISS PBL23 END | 46.028 |
| HIERARCH ESO ISS PBLA23 START | 25.3 |
| HIERARCH ESO ISS PBLA23 END | 26.2 |
| HIERARCH ESO ISS PBL24 START | 82.584 |
| HIERARCH ESO ISS PBL24 END | 83.259 |
| HIERARCH ESO ISS PBLA24 START | 66.411 |
| HIERARCH ESO ISS PBLA24 END | 67.307 |
| HIERARCH ESO ISS PBL34 START | 56.648 |
| HIERARCH ESO ISS PBL34 END | 57.205 |
| HIERARCH ESO ISS PBLA34 START | 98.614 |
| HIERARCH ESO ISS PBLA34 END | 99.223 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006095 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007521 |
| HIERARCH ESO ISS AMBI TEMP | 11.85 |
| HIERARCH ESO ISS AMBI FWHM START | 0.35 |
| HIERARCH ESO ISS AMBI FWHM END | 0.33 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5371 |