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35891 (1999 JS81)
Classification: Main-belt Asteroid          SPK-ID: 2035891
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2013814663145014 3.794e-08  
a 2.422244533861907 8.6455e-09 au
q 1.93444937786051 9.0885e-08 au
i 11.34024084613439 3.9234e-06 deg
node 138.4222948118043 1.8171e-05 deg
peri 227.0967143648794 2.0262e-05 deg
M 69.41485191870852 7.6596e-06 deg
tp 2458734.993410318791
(2019-Sep-08.49341032)
2.9452e-05 TDB
period 1376.972933647853
3.77
7.3721e-06
2.018e-08
d
yr
n .2614430474288948 1.3997e-09 deg/d
Q 2.910039689863304 1.0387e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1791  
   data-arc span      8119 days (22.23 yr)  
   first obs. used      1998-01-24  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51478  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:09:49  

Additional Information
 Earth MOID = .949645 au 
 Jupiter MOID = 2.57629 au 
 T_jup = 3.459 
[ 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 14.3   n/a MPO358959  
diameter diameter 5.127 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.169   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35891 (1999 JS81)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JS81 = 1998 BH40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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