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JPL Small-Body Database Browser
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49556 (1999 CJ91)
Classification: Main-belt Asteroid          SPK-ID: 2049556
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1306821745054365 4.721e-08  
a 3.119011573882714 1.9955e-08 au
q 2.711412359100097 1.5088e-07 au
i 17.68312504214959 4.6553e-06 deg
node 332.0700215794351 1.5913e-05 deg
peri 55.12597350247223 2.4291e-05 deg
M 336.8172966549205 1.6823e-05 deg
tp 2458730.064338908859
(2019-Sep-03.56433891)
9.3772e-05 TDB
period 2011.981144428915
5.51
1.9309e-05
5.287e-08
d
yr
n .178928118186805 1.7171e-09 deg/d
Q 3.526610788665331 2.2563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1352  
   data-arc span      23635 days (64.71 yr)  
   first obs. used      1955-03-23  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44545  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:21:13  

Additional Information
 Earth MOID = 1.75181 au 
 Jupiter MOID = 2.06435 au 
 T_jup = 3.131 
[ 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 13.1   n/a MPO502486  
diameter diameter 8.989 km 0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.151   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49556 (1999 CJ91)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 CJ91 = 1980 PK2 = 2002 PA40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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