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JPL Small-Body Database Browser
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35785 (1999 JY21)
Classification: Main-belt Asteroid          SPK-ID: 2035785
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07010116743720653 3.2218e-08  
a 2.214524271683524 8.5522e-09 au
q 2.059283534920479 7.1387e-08 au
i 2.532949365202354 4.2509e-06 deg
node 270.3056917991242 0.00010644 deg
peri 335.0262797638574 0.00011379 deg
M .235458694494578 4.1154e-05 deg
tp 2458599.712716182357
(2019-Apr-26.21271618)
0.0001376 TDB
period 1203.702309485663
3.30
6.9728e-06
1.909e-08
d
yr
n .2990772694901835 1.7325e-09 deg/d
Q 2.369765008446568 9.1518e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1176  
   data-arc span      15708 days (43.01 yr)  
   first obs. used      1976-05-03  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51486  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:55:29  

Additional Information
 Earth MOID = 1.0458 au 
 Jupiter MOID = 2.63313 au 
 T_jup = 3.650 
[ 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 15.3   n/a MPO439339  
diameter diameter 2.429 km 0.381 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.299   0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

35785 (1999 JY21)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JY21 = 1976 JB6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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