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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2185709948304505 3.8732e-08  
a 3.919297019373761 2.9187e-08 au
q 3.062652370813219 1.528e-07 au
i 8.311505562525275 4.5568e-06 deg
node 175.8812300332927 3.0291e-05 deg
peri 234.0908495166412 3.2452e-05 deg
M 41.83593824435316 9.5552e-06 deg
tp 2459067.149971626385
(2020-Aug-05.64997163)
7.4836e-05 TDB
period 2834.070781967104
7.76
3.1658e-05
8.667e-08
d
yr
n .1270257617737152 1.4189e-09 deg/d
Q 4.775941667934304 3.5567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1139  
   data-arc span      11838 days (32.41 yr)  
   first obs. used      1988-09-15  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47189  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:11:36  

Additional Information
 Earth MOID = 2.08211 au 
 Jupiter MOID = .794022 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 13.38   n/a MPCxxxxx  
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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