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JPL Small-Body Database Browser
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49499 (1999 CJ8)
Classification: Main-belt Asteroid          SPK-ID: 2049499
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05413980143911531 3.277e-08  
a 2.99010077347719 1.7621e-08 au
q 2.82821731131819 9.9122e-08 au
i 10.03269405504475 3.7469e-06 deg
node 132.4021722121541 2.3517e-05 deg
peri 148.0447227684158 4.5751e-05 deg
M 215.6971621843999 4.0316e-05 deg
tp 2459357.506373459133
(2021-May-23.00637346)
0.0002132 TDB
period 1888.544248821602
5.17
1.6694e-05
4.571e-08
d
yr
n .1906230157035663 1.685e-09 deg/d
Q 3.15198423563619 1.8575e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1664  
   data-arc span      7410 days (20.29 yr)  
   first obs. used      1999-01-23  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49254  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:40:55  

Additional Information
 Earth MOID = 1.81657 au 
 Jupiter MOID = 2.00875 au 
 T_jup = 3.231 
[ 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 13.4   n/a MPO436130  
diameter diameter 6.291 km 0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.234   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49499 (1999 CJ8)          Discovered 1999-Feb-13 by Kobayashi, T. at Oizumi
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CJ8 = 2000 LY4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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