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78147 (2002 NH22)
Classification: Main-belt Asteroid          SPK-ID: 2078147
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1475200829310087 5.434e-08  
a 2.962323307011296 2.0386e-08 au
q 2.525321127092529 1.5597e-07 au
i 7.775115033703046 4.6149e-06 deg
node 296.0871618879534 3.6997e-05 deg
peri 87.33137918437917 3.9954e-05 deg
M 121.257206616882 1.5165e-05 deg
tp 2458373.233392313862
(2018-Sep-11.73339231)
7.7472e-05 TDB
period 1862.289137836451
5.10
1.9224e-05
5.263e-08
d
yr
n .1933104761692573 1.9955e-09 deg/d
Q 3.399325486930062 2.3393e-08 au
  Orbit Determination Parameters
   # obs. used (total)      864  
   data-arc span      8262 days (22.62 yr)  
   first obs. used      1997-09-08  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55474  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:28:05  

Additional Information
 Earth MOID = 1.54367 au 
 Jupiter MOID = 2.15057 au 
 T_jup = 3.235 
[ 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 14.5   n/a MPO453201  
diameter diameter 4.711 km 0.909 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.152   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78147 (2002 NH22)          Discovered 2002-Jul-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 NH22 = 1998 YD25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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