Exposure
- ID
- GRAVI.2021-05-23T07:55:57.671_2
- Header ID
- GRAVI.2021-05-23T07:55:57.671
- Date updated
- 2021-05-23 08:15:30 UTC+0000
- Release date
- 2022-05-23 08:15:30 UTC+0000
- UTC Start
- 2021-05-23 07:55:57.671
- UTC End
- 2021-05-23 08:01:17.671
- MJD Start
- 59357.3305286
- MJD End
- 59357.3342323037
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0076075
- Ambient temperature (°C)
- 11.46
- Seeing (arcsec)
- 0.235
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 | 54.8450 | 54.6680 | 34.6000 | 35.0000 |
| U1-U3 | 98.5820 | 98.1700 | 40.9000 | 41.3000 |
| U1-U4 | 122.0330 | 121.0700 | 70.0410 | 70.5760 |
| U2-U3 | 44.4880 | 44.2510 | 48.7000 | 49.2000 |
| U2-U4 | 83.6630 | 82.9510 | 92.4020 | 93.1230 |
| U3-U4 | 59.9450 | 59.6140 | 123.2230 | 124.1310 |
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 | 59357.3305286 |
| 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 | 54.845 |
| HIERARCH ESO ISS PBL12 END | 54.668 |
| HIERARCH ESO ISS PBLA12 START | 34.6 |
| HIERARCH ESO ISS PBLA12 END | 35.0 |
| HIERARCH ESO ISS PBL13 START | 98.582 |
| HIERARCH ESO ISS PBL13 END | 98.17 |
| HIERARCH ESO ISS PBLA13 START | 40.9 |
| HIERARCH ESO ISS PBLA13 END | 41.3 |
| HIERARCH ESO ISS PBL14 START | 122.033 |
| HIERARCH ESO ISS PBL14 END | 121.07 |
| HIERARCH ESO ISS PBLA14 START | 70.041 |
| HIERARCH ESO ISS PBLA14 END | 70.576 |
| HIERARCH ESO ISS PBL23 START | 44.488 |
| HIERARCH ESO ISS PBL23 END | 44.251 |
| HIERARCH ESO ISS PBLA23 START | 48.7 |
| HIERARCH ESO ISS PBLA23 END | 49.2 |
| HIERARCH ESO ISS PBL24 START | 83.663 |
| HIERARCH ESO ISS PBL24 END | 82.951 |
| HIERARCH ESO ISS PBLA24 START | 92.402 |
| HIERARCH ESO ISS PBLA24 END | 93.123 |
| HIERARCH ESO ISS PBL34 START | 59.945 |
| HIERARCH ESO ISS PBL34 END | 59.614 |
| HIERARCH ESO ISS PBLA34 START | 123.223 |
| HIERARCH ESO ISS PBLA34 END | 124.131 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007123 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008092 |
| HIERARCH ESO ISS AMBI TEMP | 11.46 |
| HIERARCH ESO ISS AMBI FWHM START | 0.25 |
| HIERARCH ESO ISS AMBI FWHM END | 0.22 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5371 |