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35918 (1999 JL99)
Classification: Main-belt Asteroid          SPK-ID: 2035918
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2698360366957016 5.1704e-08  
a 2.786693504705311 1.6938e-08 au
q 2.034743173909976 1.4215e-07 au
i 18.47566543591766 4.605e-06 deg
node 96.26570243852669 1.576e-05 deg
peri 276.2802366632839 1.7203e-05 deg
M 85.91671084116534 9.3038e-06 deg
tp 2458594.984576796076
(2019-Apr-21.48457680)
4.1992e-05 TDB
period 1699.152015063714
4.65
1.5492e-05
4.241e-08
d
yr
n .2118703899406558 1.9317e-09 deg/d
Q 3.538643835500647 2.1509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1149  
   data-arc span      8057 days (22.06 yr)  
   first obs. used      1998-04-02  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50879  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:10:19  

Additional Information
 Earth MOID = 1.13102 au 
 Jupiter MOID = 2.2903 au 
 T_jup = 3.204 
[ show covariance matrix ]

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 13.7   n/a MPO412440  
diameter diameter 4.469 km 0.979 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.308   0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

35918 (1999 JL99)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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