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442211 (2011 HP5)
Classification: Main-belt Asteroid          SPK-ID: 2442211
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2520167427859024 4.4931e-08  
a 2.37734298052354 2.3125e-08 au
q 1.778212746087069 1.0055e-07 au
i 9.07583597777325 8.0669e-06 deg
node 155.1306204960665 3.0982e-05 deg
peri 95.31755968254939 4.2054e-05 deg
M 151.5294493503839 2.9213e-05 deg
tp 2458436.952231607720
(2018-Nov-14.45223161)
0.00010175 TDB
period 1338.863154924458
3.67
1.9535e-05
5.348e-08
d
yr
n .26888483612077 3.9233e-09 deg/d
Q 2.976473214960012 2.8953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      7119 days (19.49 yr)  
   first obs. used      2000-04-27  
   last obs. used      2019-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63774  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:59:49  

Additional Information
 Earth MOID = .792603 au 
 Jupiter MOID = 2.13873 au 
 T_jup = 3.481 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.8   n/a MPO437720  

442211 (2011 HP5)          Discovered 2004-Jun-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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