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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 114 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3838834710215814 1.0945e-07  
a 2.100164757172621 1.8595e-08 au
q 1.293946220471998 2.2855e-07 au
i 22.56561162047536 8.876e-06 deg
node 227.1896551897946 8.2801e-06 deg
peri 141.6871797172073 4.3496e-05 deg
M 70.96331359032193 1.7274e-05 deg
tp 2458381.365951697804
(2018-Sep-19.86595170)
5.555e-05 TDB
period 1111.676631170582
3.04
1.4765e-05
4.042e-08
d
yr
n .3238351782396689 4.301e-09 deg/d
Q 2.906383293873243 2.5734e-08 au
  Orbit Determination Parameters
   # obs. used (total)      747  
   data-arc span      3229 days (8.84 yr)  
   first obs. used      2010-03-22  
   last obs. used      2019-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34179  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-31 08:22:45  

Additional Information
 Earth MOID = .348944 au 
 Jupiter MOID = 2.69577 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. 2019-January); 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. 46-2, submitted. (Very Wide Binary Candidates) Temp: http://www.planetarysciences.org/PHP/CS3_Lightcurves.php]
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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