Exposure
- ID
- GRAVI.2021-03-31T06:49:27.539_2
- Header ID
- GRAVI.2021-03-31T06:49:27.539
- Date updated
- 2021-09-29 14:27:08 UTC+0000
- Release date
- 2022-03-31 07:00:23 UTC+0000
- UTC Start
- 2021-03-31 06:49:27.539
- UTC End
- 2021-03-31 06:51:07.539
- MJD Start
- 59304.28434652
- MJD End
- 59304.2855039274
- Exposure time (s)
- 100.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0059315
- Ambient temperature (°C)
- 10.97
- Seeing (arcsec)
- 0.345
Observation
- ID
- 47317
- Category
- science
- Program ID
- 106.20XY.001
- Program Title
- THE GALACTIC CENTER AT UNPRECEDENTED RESOLUTION - PROBING GENERAL RELATIVITY WITH GRAVITY
- Program Type
- GTO
- PI / COI
- EISENHAUER/ GILLESSEN/ GENZEL/ STRAUBMEIER/ ROUSSELET-PERRAUT/ BRANDNER/ GARCIA/ ECKART/ KERVELLA/ OTT/ DE ZEEUW/ STADLER/ VON FELLENBERG/ WIDMANN/ HABIBI/ HENNING/ PAUMARD/ PERRIN/ HORROBIN/ CL\XC3\XA9NET
Target
- ID
- 35483
- Name
- IRS16NW
- RA
- 266.4168625
- DEC
- -29.0074847222222
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 | 56.2330 | 56.2350 | 2.1000 | 2.4000 |
| U1-U3 | 100.7980 | 100.8180 | 7.0000 | 7.3000 |
| U1-U4 | 116.0410 | 116.3050 | 30.8620 | 31.3530 |
| U2-U3 | 45.0260 | 45.0500 | 13.1000 | 13.5000 |
| U2-U4 | 72.0310 | 72.3970 | 52.9350 | 53.4280 |
| U3-U4 | 47.2800 | 47.6320 | 90.5400 | 90.8110 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 106.20XY.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59304.28434652 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16NW |
| HIERARCH ESO INS SOBJ NAME | IRS16C |
| RA | 266.417031 |
| DEC | -29.00713 |
| 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 | 140.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 1.0 |
| HIERARCH ESO DET2 NDIT | 100 |
| HIERARCH ESO ISS PBL12 START | 56.233 |
| HIERARCH ESO ISS PBL12 END | 56.235 |
| HIERARCH ESO ISS PBLA12 START | 2.1 |
| HIERARCH ESO ISS PBLA12 END | 2.4 |
| HIERARCH ESO ISS PBL13 START | 100.798 |
| HIERARCH ESO ISS PBL13 END | 100.818 |
| HIERARCH ESO ISS PBLA13 START | 7.0 |
| HIERARCH ESO ISS PBLA13 END | 7.3 |
| HIERARCH ESO ISS PBL14 START | 116.041 |
| HIERARCH ESO ISS PBL14 END | 116.305 |
| HIERARCH ESO ISS PBLA14 START | 30.862 |
| HIERARCH ESO ISS PBLA14 END | 31.353 |
| HIERARCH ESO ISS PBL23 START | 45.026 |
| HIERARCH ESO ISS PBL23 END | 45.05 |
| HIERARCH ESO ISS PBLA23 START | 13.1 |
| HIERARCH ESO ISS PBLA23 END | 13.5 |
| HIERARCH ESO ISS PBL24 START | 72.031 |
| HIERARCH ESO ISS PBL24 END | 72.397 |
| HIERARCH ESO ISS PBLA24 START | 52.935 |
| HIERARCH ESO ISS PBLA24 END | 53.428 |
| HIERARCH ESO ISS PBL34 START | 47.28 |
| HIERARCH ESO ISS PBL34 END | 47.632 |
| HIERARCH ESO ISS PBLA34 START | 90.54 |
| HIERARCH ESO ISS PBLA34 END | 90.811 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005868 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005995 |
| HIERARCH ESO ISS AMBI TEMP | 10.97 |
| HIERARCH ESO ISS AMBI FWHM START | 0.35 |
| HIERARCH ESO ISS AMBI FWHM END | 0.34 |
| HIERARCH ESO FT ROBJ NAME | IRS16NW |
| HIERARCH ESO FT ROBJ ALPHA | 174540.047 |
| HIERARCH ESO FT ROBJ DELTA | -290026.945 |