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85710 (1998 SP38)
Classification: Main-belt Asteroid          SPK-ID: 2085710
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1803368511095003 4.8007e-08  
a 2.5725200667649 1.1704e-08 au
q 2.108599898508517 1.2348e-07 au
i 11.05304440404674 4.8155e-06 deg
node 353.8035932250557 2.6779e-05 deg
peri 68.15672303438903 2.9307e-05 deg
M 136.8935264559202 1.2132e-05 deg
tp 2458823.417701451575
(2019-Dec-05.91770145)
5.028e-05 TDB
period 1507.080961522784
4.13
1.0285e-05
2.816e-08
d
yr
n .2388723692961053 1.6301e-09 deg/d
Q 3.036440235021284 1.3814e-08 au
  Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      10639 days (29.13 yr)  
   first obs. used      1992-03-25  
   last obs. used      2021-05-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49498  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:26:48  

Additional Information
 Earth MOID = 1.14841 au 
 Jupiter MOID = 2.41089 au 
 T_jup = 3.380 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.13   n/a MPCxxxxx  
diameter diameter 3.542 km 1.291 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85710 (1998 SP38)          Discovered 1998-Sep-23 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 SP38 = 2000 EZ78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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