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85982 (1999 HQ6)
Classification: Main-belt Asteroid          SPK-ID: 2085982
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1144920062346238 5.1796e-08  
a 2.691377238685063 1.2403e-08 au
q 2.383236059093809 1.419e-07 au
i 8.904704668024616 5.563e-06 deg
node 2.287165708208377 2.3253e-05 deg
peri 351.5718416688475 2.8102e-05 deg
M 207.1016298702243 1.6896e-05 deg
tp 2460081.452799198421
(2023-May-16.95279920)
7.7613e-05 TDB
period 1612.724893680285
4.42
1.1148e-05
3.052e-08
d
yr
n .2232246810418295 1.5431e-09 deg/d
Q 2.999518418276318 1.3823e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1573  
   data-arc span      8114 days (22.21 yr)  
   first obs. used      1999-03-22  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50722  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:27:29  

Additional Information
 Earth MOID = 1.37806 au 
 Jupiter MOID = 2.43458 au 
 T_jup = 3.345 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.46   n/a MPO637179  
rotation period rot_per 27.4733 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

85982 (1999 HQ6)          Discovered 1999-Apr-19 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1999 HQ6 = 2001 SK110 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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