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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2012266261211486 4.4142e-08  
a 2.421854326550874 1.0903e-08 au
q 1.934512751462135 1.0871e-07 au
i 11.33993687470993 5.2338e-06 deg
node 138.4265449846761 1.8627e-05 deg
peri 227.0517143852826 2.1583e-05 deg
M 324.8586989494758 1.2087e-05 deg
tp 2458734.880356245751
(2019-Sep-08.38035625)
4.6577e-05 TDB
period 1376.640215423912
3.77
9.2962e-06
2.545e-08
d
yr
n .2615062352287481 1.7659e-09 deg/d
Q 2.909195901639612 1.3097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1322  
   data-arc span      7499 days (20.53 yr)  
   first obs. used      1998-01-24  
   last obs. used      2018-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56207  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 19:17:17  

Additional Information
 Earth MOID = .948806 au 
 Jupiter MOID = 2.57334 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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