Exposure
- ID
- GRAVI.2024-07-18T05:00:36.763_2
- Header ID
- GRAVI.2024-07-18T05:00:36.763
- Date updated
- 2024-07-18 08:50:34 UTC+0000
- Release date
- 2025-07-18 08:50:31 UTC+0000
- UTC Start
- 2024-07-18 05:00:36.763
- UTC End
- 2024-07-18 05:06:36.763
- MJD Start
- 60509.20875883
- MJD End
- 60509.2129254967
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006885
- Ambient temperature (°C)
- 15.9
- Seeing (arcsec)
- 0.635
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
- 266.417083333333
- DEC
- -29.0076816944444
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 | 53.1270 | 52.8280 | 37.6000 | 38.0000 |
| U1-U3 | 94.6130 | 93.9260 | 43.9000 | 44.3000 |
| U1-U4 | 112.8210 | 111.2440 | 74.1660 | 74.7260 |
| U2-U3 | 42.2040 | 41.8100 | 51.8000 | 52.2000 |
| U2-U4 | 76.9270 | 75.7920 | 98.4340 | 99.3510 |
| U3-U4 | 56.9170 | 56.4330 | 131.0450 | 132.2640 |
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 | 60509.20875883 |
| 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 | 53.127 |
| HIERARCH ESO ISS PBL12 END | 52.828 |
| HIERARCH ESO ISS PBLA12 START | 37.6 |
| HIERARCH ESO ISS PBLA12 END | 38.0 |
| HIERARCH ESO ISS PBL13 START | 94.613 |
| HIERARCH ESO ISS PBL13 END | 93.926 |
| HIERARCH ESO ISS PBLA13 START | 43.9 |
| HIERARCH ESO ISS PBLA13 END | 44.3 |
| HIERARCH ESO ISS PBL14 START | 112.821 |
| HIERARCH ESO ISS PBL14 END | 111.244 |
| HIERARCH ESO ISS PBLA14 START | 74.166 |
| HIERARCH ESO ISS PBLA14 END | 74.726 |
| HIERARCH ESO ISS PBL23 START | 42.204 |
| HIERARCH ESO ISS PBL23 END | 41.81 |
| HIERARCH ESO ISS PBLA23 START | 51.8 |
| HIERARCH ESO ISS PBLA23 END | 52.2 |
| HIERARCH ESO ISS PBL24 START | 76.927 |
| HIERARCH ESO ISS PBL24 END | 75.792 |
| HIERARCH ESO ISS PBLA24 START | 98.434 |
| HIERARCH ESO ISS PBLA24 END | 99.351 |
| HIERARCH ESO ISS PBL34 START | 56.917 |
| HIERARCH ESO ISS PBL34 END | 56.433 |
| HIERARCH ESO ISS PBLA34 START | 131.045 |
| HIERARCH ESO ISS PBLA34 END | 132.264 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007685 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006085 |
| HIERARCH ESO ISS AMBI TEMP | 15.9 |
| HIERARCH ESO ISS AMBI FWHM START | 0.62 |
| HIERARCH ESO ISS AMBI FWHM END | 0.65 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1000 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6541 |