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35784 (1999 JS21)
Classification: Main-belt Asteroid          SPK-ID: 2035784
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2043129972919977 3.541e-08  
a 2.404774941083792 1.48e-08 au
q 1.913448165058276 8.4912e-08 au
i 3.438403230578347 4.0701e-06 deg
node 305.87745562 7.946e-05 deg
peri 16.64480389203069 8.0521e-05 deg
M 49.35255763532419 1.6663e-05 deg
tp 2458413.768645693137
(2018-Oct-22.26864569)
6.2019e-05 TDB
period 1362.103420195502
3.73
1.2575e-05
3.443e-08
d
yr
n .2642971118509704 2.44e-09 deg/d
Q 2.896101717109309 1.7824e-08 au
  Orbit Determination Parameters
   # obs. used (total)      805  
   data-arc span      9663 days (26.46 yr)  
   first obs. used      1992-07-20  
   last obs. used      2019-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6018  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:48:44  

Additional Information
 Earth MOID = .900351 au 
 Jupiter MOID = 2.42393 au 
 T_jup = 3.492 
[ 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 15.2   n/a MPO296413  
diameter diameter 2.252 km 0.705 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.348   0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35784 (1999 JS21)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JS21 = 1992 OT7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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