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85821 (1998 XQ10)
Classification: Main-belt Asteroid          SPK-ID: 2085821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05391835584898618 3.3905e-08  
a 2.392974451248287 7.971e-09 au
q 2.26394920324835 8.2445e-08 au
i 4.789618998521274 3.9024e-06 deg
node 293.92956926152 3.9478e-05 deg
peri 156.6037439612163 5.2906e-05 deg
M 6.022445033156507 3.4606e-05 deg
tp 2459177.880871711007
(2020-Nov-24.38087171)
0.00012996 TDB
period 1352.089747470846
3.70
6.7557e-06
1.85e-08
d
yr
n .2662545150374809 1.3303e-09 deg/d
Q 2.521999699248225 8.4007e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1625  
   data-arc span      8151 days (22.32 yr)  
   first obs. used      1998-11-25  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48443  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:07:30  

Additional Information
 Earth MOID = 1.28123 au 
 Jupiter MOID = 2.57102 au 
 T_jup = 3.524 
[ 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 14.59   n/a MPCxxxxx  
diameter diameter 4.097 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.183   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85821 (1998 XQ10)          Discovered 1998-Dec-15 by ODAS at Caussols
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 XQ10 = 2001 QY98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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