Content
asteroid: (229762) Gǃkúnǁʼhòmdímà
satellites: Gǃòʼéǃhú
total number: 8
type: position
dates: 2008-2018
observatory: 250 - HST
568 - Mauna Kea
Reference.
Grundy, W. M.; Noll, K. S.; Buie, M. W.; Benecchi, S. D.; Ragozzine, D.; Roe, H. G.
The mutual orbit, mass, and density of transneptunian binary Gǃkúnǁ'hòmdímà (229762 2007 UK126).
Icarus. 2019. V. 334. P. 30-38.
2019Icar..334...30G
Informations.
relative to: the primary
reference frame: astrometric
centre of frame: topocentric
epoch of equinox: J2000
time scale: UT
reduction: no information
coordinates: relative right ascension and declination
diff. refraction: no information
receptor: CCD
telescope: - WFPC2/PC and WFC3/UVIS at the 2.4m Hubble Space Telescope (HST)
- NIRC2 at the 10m Keck 2 telescope
Comments.
Format
1. Year of the date of observation
2. Month of the date of observation
3. Day of the date of observation
4. Hour of the date of observation with decimals
5. The distance from the Sun to the target (r, AU)
6. The distance from the observer to the target (R, AU)
7. Angular separation between the observer and Sun as seen from the target (g, deg)
8. Relative right ascension (X, arcsec)
9. 1-sigma uncertainty in X (sigma_X, arcsec)
10. Relative declination (Y, arcsec)
11. 1-sigma uncertainty in Y (sigma_Y, arcsec)
12. The mean magnitude difference between primary and secondary bodies (d_mag)
(99.99 if not available)
13. 1-sigma uncertainty in d_mag (e_mag) (99.99 if d_mag is not available)
14. Telescope (T): 1. HST/WFPC2; 2. Keck/NIRC2; 3. HST/WFC3 UVIS
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Year Day Hour r R g X sigma_X Y sigma_Y d_mag e_mag T
Month AU AU deg arcsec arcsec arcsec arcsec
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