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15489 (1999 CJ78)
Classification: Main-belt Asteroid          SPK-ID: 2015489
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2106527570867479 1.8015e-08  
a 3.178794196784017 1.3778e-08 au
q 2.509172435020109 5.8388e-08 au
i 7.808139601858861 6.11e-07 deg
node 189.0493406186008 3.9042e-06 deg
peri 207.2974232551628 5.7813e-06 deg
M 36.03237182417465 3.8983e-06 deg
tp 2458993.303510110311
(2020-May-23.80351011)
2.134e-05 TDB
period 2070.103426004387
5.67
1.3459e-05
3.685e-08
d
yr
n .1739043544770391 1.1307e-09 deg/d
Q 3.848415958547924 1.6681e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2301  
   data-arc span      15202 days (41.62 yr)  
   first obs. used      1979-07-24  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47367  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:59:59  

Additional Information
 Earth MOID = 1.51777 au 
 Jupiter MOID = 1.6032 au 
 T_jup = 3.151 
[ 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 12.87   n/a E2021B10  
diameter diameter 15.116 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15489 (1999 CJ78)          Discovered 1999-Feb-12 by LINEAR at Socorro
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CJ78 = 1979 OX8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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