Exposure
- ID
- GRAVI.2024-07-18T01:20:36.204_2
- Header ID
- GRAVI.2024-07-18T01:20:36.204
- Date updated
- 2024-07-18 07:30:27 UTC+0000
- Release date
- 2025-07-18 07:30:27 UTC+0000
- UTC Start
- 2024-07-18 01:20:36.204
- UTC End
- 2024-07-18 01:26:36.204
- MJD Start
- 60509.05597458
- MJD End
- 60509.060141246664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.009758
- Ambient temperature (°C)
- 17.87
- Seeing (arcsec)
- 0.53
Observation
- ID
- 60139
- Category
- science
- Program ID
- 113.268P.004
- Program Title
- THE GALACTIC CENTER WITH GRAVITY - MEASURING THE SPIN OF SGR A* BY MEANS OF DEEP GRAVITY INTERFEROMETRY
- Program Type
- GTO
- PI / COI
- EISENHAUER / GILLESSEN / GENZEL / OTT / WIDMANN / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / BRANDNER / PERRIN / ROUSSELET-PERRAUT / GARCIA / MANG / PAUMARD / ECKART / VINCENT / BOURDAROT / LUTZ / STURM / CAO / HORROBIN / LE BOUQUIN / KREIDBERG /
Target
- ID
- 43560
- Name
- IRS16C
- RA
- 266.4170833333333
- DEC
- -29.007681694444443
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 | 56.5000 | 56.5170 | 16.2000 | 17.0000 |
| U1-U3 | 102.0970 | 102.1720 | 22.2000 | 23.1000 |
| U1-U4 | 127.0350 | 127.5520 | 49.3830 | 50.3640 |
| U2-U3 | 46.2900 | 46.3570 | 29.5000 | 30.5000 |
| U2-U4 | 85.5700 | 86.1530 | 70.5950 | 71.5130 |
| U3-U4 | 59.0900 | 59.5620 | 101.5660 | 102.2540 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.268P.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60509.05597458 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416896 |
| DEC | -29.00733 |
| 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 | 389.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 56.5 |
| HIERARCH ESO ISS PBL12 END | 56.517 |
| HIERARCH ESO ISS PBLA12 START | 16.2 |
| HIERARCH ESO ISS PBLA12 END | 17.0 |
| HIERARCH ESO ISS PBL13 START | 102.097 |
| HIERARCH ESO ISS PBL13 END | 102.172 |
| HIERARCH ESO ISS PBLA13 START | 22.2 |
| HIERARCH ESO ISS PBLA13 END | 23.1 |
| HIERARCH ESO ISS PBL14 START | 127.035 |
| HIERARCH ESO ISS PBL14 END | 127.552 |
| HIERARCH ESO ISS PBLA14 START | 49.383 |
| HIERARCH ESO ISS PBLA14 END | 50.364 |
| HIERARCH ESO ISS PBL23 START | 46.29 |
| HIERARCH ESO ISS PBL23 END | 46.357 |
| HIERARCH ESO ISS PBLA23 START | 29.5 |
| HIERARCH ESO ISS PBLA23 END | 30.5 |
| HIERARCH ESO ISS PBL24 START | 85.57 |
| HIERARCH ESO ISS PBL24 END | 86.153 |
| HIERARCH ESO ISS PBLA24 START | 70.595 |
| HIERARCH ESO ISS PBLA24 END | 71.513 |
| HIERARCH ESO ISS PBL34 START | 59.09 |
| HIERARCH ESO ISS PBL34 END | 59.562 |
| HIERARCH ESO ISS PBLA34 START | 101.566 |
| HIERARCH ESO ISS PBLA34 END | 102.254 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.009243 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.010273 |
| HIERARCH ESO ISS AMBI TEMP | 17.87 |
| HIERARCH ESO ISS AMBI FWHM START | 0.51 |
| HIERARCH ESO ISS AMBI FWHM END | 0.55 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1000 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6541 |