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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2699941674656758 5.1134e-08  
a 2.786503495071582 1.6356e-08 au
q 2.034163803779534 1.4015e-07 au
i 18.47476753085576 4.0922e-06 deg
node 96.26227850335886 1.5185e-05 deg
peri 276.2759144710387 1.6386e-05 deg
M 128.285448367311 9.4158e-06 deg
tp 2458595.071709688416
(2019-Apr-21.57170969)
4.1238e-05 TDB
period 1698.978233978002
4.65
1.4959e-05
4.096e-08
d
yr
n .2118920612402979 1.8656e-09 deg/d
Q 3.53884318636363 2.0772e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1311  
   data-arc span      8391 days (22.97 yr)  
   first obs. used      1998-04-02  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49413  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:01:53  

Additional Information
 Earth MOID = 1.1293 au 
 Jupiter MOID = 2.29131 au 
 T_jup = 3.204 
[ 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 13.82   n/a MPCxxxxx  
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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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