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78122 (2002 NG4)
Classification: Main-belt Asteroid          SPK-ID: 2078122
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1895408114362968 4.2422e-08  
a 3.157909033353645 2.1365e-08 au
q 2.559356392729783 1.3584e-07 au
i 2.496215853973235 4.8373e-06 deg
node 145.3502060616131 9.3591e-05 deg
peri 178.2449460016923 9.4298e-05 deg
M 50.67111021178852 1.0137e-05 deg
tp 2458711.993388965656
(2019-Aug-16.49338897)
5.7867e-05 TDB
period 2049.735629202784
5.61
2.0802e-05
5.695e-08
d
yr
n .1756324058922745 1.7824e-09 deg/d
Q 3.756461673977507 2.5415e-08 au
  Orbit Determination Parameters
   # obs. used (total)      635  
   data-arc span      10673 days (29.22 yr)  
   first obs. used      1991-08-10  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54511  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:28:10  

Additional Information
 Earth MOID = 1.54714 au 
 Jupiter MOID = 1.58344 au 
 T_jup = 3.176 
[ 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 15.0   n/a MPO449491  
diameter diameter 5.903 km 0.974 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78122 (2002 NG4)          Discovered 2002-Jul-01 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 NG4 = 1991 PL29 = 1997 UB24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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