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85351 (1995 UC18)
Classification: Main-belt Asteroid          SPK-ID: 2085351
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07510249503637881 3.8958e-08  
a 3.074841761981116 2.5632e-08 au
q 2.843913473814279 1.2725e-07 au
i 13.56983187608904 5.6731e-06 deg
node 198.3296936465773 1.5619e-05 deg
peri 113.1576490454933 4.107e-05 deg
M 254.336098648785 3.8323e-05 deg
tp 2459578.538445348123
(2021-Dec-30.03844535)
0.00021226 TDB
period 1969.393876851503
5.39
2.4626e-05
6.742e-08
d
yr
n .1827973592441228 2.2857e-09 deg/d
Q 3.305770050147953 2.7557e-08 au
  Orbit Determination Parameters
   # obs. used (total)      501  
   data-arc span      10804 days (29.58 yr)  
   first obs. used      1990-11-12  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53575  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:01:15  

Additional Information
 Earth MOID = 1.86486 au 
 Jupiter MOID = 1.94449 au 
 T_jup = 3.183 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457483.5 (2016-Apr-05.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0738322401506086 3.8941e-08  
q 2.849023403152676 1.2714e-07 au
tp 2457607.652649372530
(2016-Aug-07.15264937)
0.00020807 TDB
node 198.3530117985496 1.5618e-05 deg
peri 113.1018453889725 4.1691e-05 deg
i 13.56765454092635 5.6724e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      501  
   data-arc span      10804 days (29.58 yr)  
   first obs. used      1990-11-12  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53575  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:01:15  

Additional Information
 Jupiter MOID = 1.94449 au 
 T_jup = 3.183 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.516423299672418E-15 -4.868517736343239E-15 2.334701756253322E-12 -2.790667334648352E-15 4.77092892645734E-13 -4.395717067649183E-15
q -4.868517736343239E-15 1.616450686741178E-14 -5.846745174654721E-12 9.652795892949412E-15 -1.237911050683865E-12 1.754474926461301E-14
tp 2.334701756253322E-12 -5.846745174654721E-12 4.329472517802706E-8 -1.653755833964421E-12 8.050791148046606E-9 -3.60408116167402E-12
node -2.790667334648352E-15 9.652795892949412E-15 -1.653755833964421E-12 2.439302660323918E-10 -2.371038151449953E-10 -3.2903166933663E-12
peri 4.77092892645734E-13 -1.237911050683865E-12 8.050791148046606E-9 -2.371038151449953E-10 1.738124928035397E-9 2.557066276888898E-12
i -4.395717067649183E-15 1.754474926461301E-14 -3.60408116167402E-12 -3.2903166933663E-12 2.557066276888898E-12 3.217603900541768E-11

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 MPO436372  
diameter diameter 4.469 km 0.461 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85351 (1995 UC18)          Discovered 1995-Oct-18 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1995 UC18 = 1993 FG65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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