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35919 (1999 JY99)
Classification: Main-belt Asteroid          SPK-ID: 2035919
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06382097987238738 4.2773e-08  
a 2.911604223146369 1.949e-08 au
q 2.725782788624586 1.2906e-07 au
i 12.9096562790589 4.9259e-06 deg
node 119.4628105820763 1.9668e-05 deg
peri 275.2396181383007 4.2693e-05 deg
M 297.0927617423672 3.9585e-05 deg
tp 2459317.599134268905
(2021-Apr-13.09913427)
0.00020041 TDB
period 1814.666984255264
4.97
1.8221e-05
4.989e-08
d
yr
n .1983835067940817 1.9919e-09 deg/d
Q 3.097425657668151 2.0734e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1239  
   data-arc span      8132 days (22.26 yr)  
   first obs. used      1998-02-24  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56017  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 20:33:55  

Additional Information
 Earth MOID = 1.77112 au 
 Jupiter MOID = 2.20042 au 
 T_jup = 3.242 
[ 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 13.5   n/a MPO347782  
diameter diameter 11.478 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.942 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.064   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35919 (1999 JY99)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 JY99 = 1998 FY86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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