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JPL Small-Body Database Browser
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442253 (2011 PR1)
Classification: Mars-crossing Asteroid          SPK-ID: 2442253
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3931196076050466 5.404e-07  
a 2.568614015795721 1.5881e-07 au
q 1.558841481817285 1.4834e-06 au
i 7.288056298143029 1.7961e-05 deg
node 270.8745008426645 7.3547e-05 deg
peri 41.64895993736481 9.9286e-05 deg
M 315.2011073796083 7.6168e-05 deg
tp 2458787.616237820366
(2019-Oct-31.11623782)
0.00033465 TDB
period 1503.649793001125
4.12
0.00013945
3.818e-07
d
yr
n .2394174505763595 2.2204e-08 deg/d
Q 3.578386549774158 2.2124e-07 au
  Orbit Determination Parameters
   # obs. used (total)      64  
   data-arc span      5721 days (15.66 yr)  
   first obs. used      2003-10-03  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .53152  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:54  

Additional Information
 Earth MOID = .553136 au 
 Jupiter MOID = 1.76282 au 
 T_jup = 3.307 
[ 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 18.8   n/a MPO343007  

442253 (2011 PR1)          Discovered 2003-Oct-03 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2011 PR1 = 2007 RQ184 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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