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326683 (2002 WP)
Classification: Amor [NEO]          SPK-ID: 2326683
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 150 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .215944600663861 4.4108e-09  
a 1.450161021853291 1.4982e-09 au
q 1.137006579090886 5.9149e-09 au
i 19.14981479494372 5.2439e-06 deg
node 76.31682474686748 5.8507e-06 deg
peri 1.180521498882721 9.2665e-06 deg
M 219.1012473388203 6.136e-06 deg
tp 2459646.147612006218
(2022-Mar-07.64761201)
1.109e-05 TDB
period 637.8561812989016
1.75
9.8851e-07
2.706e-09
d
yr
n .5643905484570397 8.7466e-10 deg/d
Q 1.763315464615697 1.8218e-09 au
  Orbit Determination Parameters
   # obs. used (total)      852  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      6810 days (18.64 yr)  
   first obs. used      2002-11-18  
   last obs. used      2021-07-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35572  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-12 05:52:42  

Additional Information
 Earth MOID = .152272 au 
 Jupiter MOID = 3.4966 au 
 T_jup = 4.562 
[ 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 18.41   n/a MPO638766  
diameter diameter 0.518 km 0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 6.262 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Sonka, A.B.; Popescu, M.; Nedelcu, D.A.; Gherase, R.M.; Vass, G. (2017) Minor Planet Bull. 44, 176-177.]
[Vaduvescu, O.; Aznar, A.M.; Tudor, V.; Predatu, M.; et al. (2017) Earth, Moon, and Planets 120, 41-100.]
[Warner, B.D. (2017) Minor Planet Bull. 44, 98-107.]
[Carbognani, A.; Bacci, P.; Buzzi, L. (2018) Minor Planet Bull. 45, 6-10.]
[Ditteon, R.; Adam, A.; Doyel, M.; Gibson, J.; et al. (2018) Minor Planet Bull. 45, 13-16.]
geometric albedo albedo 0.315   0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

326683 (2002 WP)          Discovered 2002-Nov-18 by NEAT at Palomar
Reference: 20120506/Numbers.arcLast Updated: 2012-05-09

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