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442742 (2012 WP3)
Classification: Amor [NEO]          SPK-ID: 2442742
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 120 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3841963724022807 8.1863e-08  
a 2.100143751972877 1.6384e-08 au
q 1.293276140941583 1.7432e-07 au
i 22.56578129003558 8.4115e-06 deg
node 227.1760447906901 8.0574e-06 deg
peri 141.6377097792996 3.2165e-05 deg
M 328.8762786704625 1.1587e-05 deg
tp 2459492.608318327566
(2021-Oct-05.10831833)
3.523e-05 TDB
period 1111.659953242419
3.04
1.3008e-05
3.561e-08
d
yr
n .3238400366496742 3.7895e-09 deg/d
Q 2.907011363004172 2.2678e-08 au
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      4135 days (11.32 yr)  
   first obs. used      2010-03-22  
   last obs. used      2021-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .33987  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-18 05:52:59  

Additional Information
 Earth MOID = .34841 au 
 Jupiter MOID = 2.70059 au 
 T_jup = 3.561 
[ 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 17.6   n/a MPO456097  
diameter diameter 2.003 km 0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 221. h n/a LCDB (Rev. 2020-October); 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.; Stephens, R.D. (2019) Minor Planet Bull. 46, 153-157.]
geometric albedo albedo 0.040   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

442742 (2012 WP3)          Discovered 2010-Mar-22 by WISE at WISE
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2012 WP3 = 2010 FV46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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