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120331 (2004 NP26)
Classification: Main-belt Asteroid          SPK-ID: 2120331
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1369437950978259 5.2481e-08  
a 3.126758798157355 2.8926e-08 au
q 2.698568581982169 1.7818e-07 au
i 5.470196713599818 4.5424e-06 deg
node 142.812990299976 5.4259e-05 deg
peri 189.5798667454534 5.7806e-05 deg
M 291.9921640304694 2.0737e-05 deg
tp 2459382.001678094529
(2021-Jun-16.50167809)
0.00011874 TDB
period 2019.482051679498
5.53
2.8023e-05
7.672e-08
d
yr
n .1782635303446281 2.4737e-09 deg/d
Q 3.55494901433254 3.2887e-08 au
  Orbit Determination Parameters
   # obs. used (total)      358  
   data-arc span      21840 days (59.79 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61568  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:57:57  

Additional Information
 Earth MOID = 1.68824 au 
 Jupiter MOID = 1.8049 au 
 T_jup = 3.193 
[ 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 15.6   n/a MPO436581  
diameter diameter 3.285 km 1.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.103   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120331 (2004 NP26)          Discovered 2004-Jul-11 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2004 NP26 = 2004 NB30 = 6860 P-L 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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