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(2012 NP)
Classification: Amor [NEO]          SPK-ID: 3606222
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 72 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4712055491770307 1.9435e-08  
a 2.088972627365039 4.2194e-09 au
q 1.104637133271711 4.1547e-08 au
i 7.366017119968496 3.6575e-06 deg
node 149.3369419615461 1.6467e-05 deg
peri 160.8685157753032 1.9597e-05 deg
M 215.1119346506732 4.9733e-06 deg
tp 2459444.341250989830
(2021-Aug-17.84125099)
1.6137e-05 TDB
period 1102.802014583468
3.02
3.3412e-06
9.148e-09
d
yr
n .326441188209085 9.8904e-10 deg/d
Q 3.073308121458367 6.2076e-09 au
  Orbit Determination Parameters
   # obs. used (total)      414  
   data-arc span      5432 days (14.87 yr)  
   first obs. used      2003-10-23  
   last obs. used      2018-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38242  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-07 06:57:20  

Additional Information
 Earth MOID = .0981454 au 
 Jupiter MOID = 2.24209 au 
 T_jup = 3.599 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.3   n/a MPO254821  
rotation period rot_per 19.64 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2016) Minor Planet Bull. 43, 66-79.]

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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