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JPL Small-Body Database Browser
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442217 (2011 HR25)
Classification: Main-belt Asteroid          SPK-ID: 2442217
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03567438866491174 1.2041e-07  
a 2.246282935114059 5.1631e-08 au
q 2.166148164635441 2.4739e-07 au
i 6.398534127493463 7.5876e-06 deg
node 99.13185840670432 7.964e-05 deg
peri 97.76401967341563 0.00016167 deg
M 154.8627227592875 0.00015593 deg
tp 2458071.519694030276
(2017-Nov-14.01969403)
0.00052024 TDB
period 1229.688505768441
3.37
4.2397e-05
1.161e-07
d
yr
n .2927570667784956 1.0094e-08 deg/d
Q 2.326417705592676 5.3473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      63  
   data-arc span      3663 days (10.03 yr)  
   first obs. used      2006-12-14  
   last obs. used      2016-12-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60698  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:30:47  

Additional Information
 Earth MOID = 1.17312 au 
 Jupiter MOID = 2.64675 au 
 T_jup = 3.621 
[ 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 18.1   n/a MPO349187  

442217 (2011 HR25)          Discovered 2006-Dec-14 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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