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85250 (1993 RQ16)
Classification: Main-belt Asteroid          SPK-ID: 2085250
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2409690364552878 8.7527e-08  
a 3.183279035752872 3.4387e-08 au
q 2.416207353739185 2.7063e-07 au
i 11.03232276100357 9.1761e-06 deg
node 1.485797358542276 3.2146e-05 deg
peri 345.1824317281772 3.5556e-05 deg
M 257.3672653243656 1.9132e-05 deg
tp 2459591.917118151227
(2022-Jan-12.41711815)
0.00011794 TDB
period 2074.485915310878
5.68
3.3614e-05
9.203e-08
d
yr
n .1735369699755475 2.812e-09 deg/d
Q 3.950350717766559 4.2674e-08 au
  Orbit Determination Parameters
   # obs. used (total)      359  
   data-arc span      9721 days (26.61 yr)  
   first obs. used      1993-09-15  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60275  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:34:54  

Additional Information
 Earth MOID = 1.41172 au 
 Jupiter MOID = 1.48942 au 
 T_jup = 3.125 
[ 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 15.1   n/a MPO253864  
diameter diameter 5.300 km 0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85250 (1993 RQ16)          Discovered 1993-Sep-15 by Debehogne, H., Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1993 RQ16 = 1999 TU192 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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