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442605 (2012 HY33)
Classification: Apollo [NEO]          SPK-ID: 2442605
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5435858615330407 7.8269e-08  
a 1.997360751426887 3.599e-08 au
q .9116236865702211 1.6473e-07 au
i 14.6980826515645 1.6305e-05 deg
node 63.61885814143914 3.1523e-05 deg
peri 270.7572403707708 3.5685e-05 deg
M 260.4294416971789 2.1043e-05 deg
tp 2459285.675121884802
(2021-Mar-12.17512188)
6.7386e-05 TDB
period 1031.05823275895
2.82
2.7867e-05
7.63e-08
d
yr
n .3491558367529799 9.437e-09 deg/d
Q 3.083097816283553 5.5553e-08 au
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      5112 days (14.00 yr)  
   first obs. used      2001-12-15  
   last obs. used      2015-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64337  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:20:27  

Additional Information
 Earth MOID = .163791 au 
 Jupiter MOID = 2.50877 au 
 T_jup = 3.611 
[ 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 19.1   n/a MPO343095  
diameter diameter 0.440 km 0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.209   0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

442605 (2012 HY33)          Discovered 2012-Apr-27 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2015-09-02

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