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129437 (1978 NG)
Classification: Main-belt Asteroid          SPK-ID: 2129437
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2655490043607116 4.6888e-08  
a 2.792679190523979 1.1945e-08 au
q 2.051086011981459 1.3356e-07 au
i 13.69024797701687 6.4255e-06 deg
node 288.1566088485769 1.5627e-05 deg
peri 56.28152358206808 1.8542e-05 deg
M 327.0937828393591 8.526e-06 deg
tp 2459156.313634828700
(2020-Nov-02.81363483)
4.0615e-05 TDB
period 1704.629500999731
4.67
1.0937e-05
2.994e-08
d
yr
n .2111895868215746 1.355e-09 deg/d
Q 3.5342723690665 1.5118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      15368 days (42.08 yr)  
   first obs. used      1978-07-10  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52513  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:40:35  

Additional Information
 Earth MOID = 1.07653 au 
 Jupiter MOID = 2.01504 au 
 T_jup = 3.236 
[ 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 14.4   n/a MPO436627  
diameter diameter 3.343 km 0.783 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.221 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D.; Erasmus, N. (2019) Minor Planet Bull. 46, 166-179.]
geometric albedo albedo 0.301   0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129437 (1978 NG)          Discovered 1978-Jul-10 by Helin, E. F., Shoemaker, E. M. at Palomar
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1978 NG = 2003 CP11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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