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JPL Small-Body Database Browser
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20443 (1999 JJ60)
Classification: Main-belt Asteroid          SPK-ID: 2020443
[ 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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2165082620604673 3.5491e-08  
a 2.330229563776113 9.108e-09 au
q 1.825715610721025 8.1789e-08 au
i 11.12802117920537 4.34e-06 deg
node 49.94927199608419 2.0623e-05 deg
peri 277.556306030174 2.3151e-05 deg
M 157.3307756721483 1.3562e-05 deg
tp 2458032.683940151186
(2017-Oct-06.18394015)		 4.736e-05 TDB
period 1299.261258150395
3.56		 7.6175e-06
2.086e-08		 d
yr
n .2770805315264225 1.6245e-09 deg/d
Q 2.8347435168312 1.108e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1405  
   data-arc span      23423 days (64.13 yr)  
   first obs. used      1955-02-13  
   last obs. used      2019-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49812  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:41:09  

Additional Information
 Earth MOID = .854541 au 
 Jupiter MOID = 2.60029 au 
 T_jup = 3.515 
[ 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 14.2   n/a MPO333008  
diameter diameter 5.531 km 0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.106   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20443 (1999 JJ60)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20010109/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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