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85651 (1998 QR12)
Classification: Main-belt Asteroid          SPK-ID: 2085651
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2384918203391464 3.8224e-08  
a 2.432903740737678 1.0099e-08 au
q 1.852676098899231 9.5878e-08 au
i 7.921066235547603 5.4117e-06 deg
node 298.7826275719844 2.7618e-05 deg
peri 79.11171975153758 3.0229e-05 deg
M 126.4362815762602 1.2865e-05 deg
tp 2458113.694999912151
(2017-Dec-26.19499991)
4.7888e-05 TDB
period 1386.072081896237
3.79
8.6305e-06
2.363e-08
d
yr
n .2597267520946649 1.6172e-09 deg/d
Q 3.013131382576126 1.2508e-08 au
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      8494 days (23.26 yr)  
   first obs. used      1996-01-19  
   last obs. used      2019-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54188  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:37:57  

Additional Information
 Earth MOID = .872962 au 
 Jupiter MOID = 2.52835 au 
 T_jup = 3.454 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO436374  
diameter diameter 4.679 km 2.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.046   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

85651 (1998 QR12)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 QR12 = 1996 BA8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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