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146979 (2002 NJ48)
Classification: Main-belt Asteroid          SPK-ID: 2146979
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1542587732891588 7.4549e-08  
a 2.267619172818027 1.521e-08 au
q 1.917819020932141 1.627e-07 au
i 25.04726130463153 7.8566e-06 deg
node 314.2352377082026 1.0333e-05 deg
peri 173.1207611482541 2.0788e-05 deg
M 268.16109132607 2.1696e-05 deg
tp 2459318.683621745388
(2021-Apr-14.18362175)
7.7361e-05 TDB
period 1247.250272050059
3.41
1.2549e-05
3.436e-08
d
yr
n .2886349340363593 2.904e-09 deg/d
Q 2.617419324703913 1.7556e-08 au
  Orbit Determination Parameters
   # obs. used (total)      585  
   data-arc span      7361 days (20.15 yr)  
   first obs. used      1999-09-06  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53676  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:40:53  

Additional Information
 Earth MOID = .933532 au 
 Jupiter MOID = 2.44751 au 
 T_jup = 3.476 
[ 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 15.5   n/a MPO436738  
diameter diameter 4.286 km 1.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.067   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

146979 (2002 NJ48)          Discovered 2002-Jul-14 by NEAT at Palomar
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

Alternate Designations
 2002 NJ48 = 1999 RF39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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