Exposure
- ID
- GRAVI.2021-05-23T08:20:00.732_2
- Header ID
- GRAVI.2021-05-23T08:20:00.732
- Date updated
- 2021-05-23 08:35:32 UTC+0000
- Release date
- 2022-05-23 08:35:32 UTC+0000
- UTC Start
- 2021-05-23 08:20:00.732
- UTC End
- 2021-05-23 08:25:20.732
- MJD Start
- 59357.3472307
- MJD End
- 59357.3509344037
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007411
- Ambient temperature (°C)
- 11.48
- 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 | 54.0280 | 53.8050 | 36.3000 | 36.7000 |
| U1-U3 | 96.6880 | 96.1740 | 42.6000 | 43.0000 |
| U1-U4 | 117.6120 | 116.4180 | 72.2510 | 72.7640 |
| U2-U3 | 43.3960 | 43.1000 | 50.5000 | 50.8000 |
| U2-U4 | 80.4080 | 79.5350 | 95.4910 | 96.2520 |
| U3-U4 | 58.4510 | 58.0590 | 127.1740 | 128.1680 |
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 | 59357.3472307 |
| 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 | 54.028 |
| HIERARCH ESO ISS PBL12 END | 53.805 |
| HIERARCH ESO ISS PBLA12 START | 36.3 |
| HIERARCH ESO ISS PBLA12 END | 36.7 |
| HIERARCH ESO ISS PBL13 START | 96.688 |
| HIERARCH ESO ISS PBL13 END | 96.174 |
| HIERARCH ESO ISS PBLA13 START | 42.6 |
| HIERARCH ESO ISS PBLA13 END | 43.0 |
| HIERARCH ESO ISS PBL14 START | 117.612 |
| HIERARCH ESO ISS PBL14 END | 116.418 |
| HIERARCH ESO ISS PBLA14 START | 72.251 |
| HIERARCH ESO ISS PBLA14 END | 72.764 |
| HIERARCH ESO ISS PBL23 START | 43.396 |
| HIERARCH ESO ISS PBL23 END | 43.1 |
| HIERARCH ESO ISS PBLA23 START | 50.5 |
| HIERARCH ESO ISS PBLA23 END | 50.8 |
| HIERARCH ESO ISS PBL24 START | 80.408 |
| HIERARCH ESO ISS PBL24 END | 79.535 |
| HIERARCH ESO ISS PBLA24 START | 95.491 |
| HIERARCH ESO ISS PBLA24 END | 96.252 |
| HIERARCH ESO ISS PBL34 START | 58.451 |
| HIERARCH ESO ISS PBL34 END | 58.059 |
| HIERARCH ESO ISS PBLA34 START | 127.174 |
| HIERARCH ESO ISS PBLA34 END | 128.168 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008118 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006704 |
| HIERARCH ESO ISS AMBI TEMP | 11.48 |
| HIERARCH ESO ISS AMBI FWHM START | 0.26 |
| HIERARCH ESO ISS AMBI FWHM END | 0.31 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5371 |