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85163 (1988 SQ2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2085163
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2180440160908464 4.9005e-08  
a 3.916643250170915 4.1238e-08 au
q 3.062642626308544 2.0739e-07 au
i 8.311858800118298 6.6734e-06 deg
node 175.8937859846006 3.043e-05 deg
peri 234.0532310246405 3.3456e-05 deg
M 351.5446004010841 1.4571e-05 deg
tp 2459066.996852020769
(2020-Aug-05.49685202)
0.00011519 TDB
period 2831.192830974679
7.75
4.4714e-05
1.224e-07
d
yr
n .1271548854113426 2.0082e-09 deg/d
Q 4.770643874033287 5.023e-08 au
  Orbit Determination Parameters
   # obs. used (total)      813  
   data-arc span      11453 days (31.36 yr)  
   first obs. used      1988-09-15  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52659  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:27:31  

Additional Information
 Earth MOID = 2.08259 au 
 Jupiter MOID = .796307 au 
 T_jup = 3.004 
[ 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 13.3   n/a MPO280328  
diameter diameter 11.598 km 0.531 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.076   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

85163 (1988 SQ2)          Discovered 1988-Sep-16 by Bus, S. J. at Cerro Tololo
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1988 SQ2 = 2003 RL18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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