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212241 (2005 JN44)
Classification: Main-belt Asteroid          SPK-ID: 2212241
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2025946163485064 5.8761e-08  
a 2.550237817105807 1.573e-08 au
q 2.033573364951804 1.5519e-07 au
i 4.934371031614085 4.8312e-06 deg
node 65.30183774529628 6.5771e-05 deg
peri 159.4957116551354 6.6672e-05 deg
M 254.1984799064601 1.4571e-05 deg
tp 2459437.678560618343
(2021-Aug-11.17856062)
6.2974e-05 TDB
period 1487.542727963255
4.07
1.3763e-05
3.768e-08
d
yr
n .2420098550667598 2.2391e-09 deg/d
Q 3.066902269259811 1.8917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      379  
   data-arc span      6760 days (18.51 yr)  
   first obs. used      2001-05-24  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54764  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:52:17  

Additional Information
 Earth MOID = 1.02515 au 
 Jupiter MOID = 1.9163 au 
 T_jup = 3.406 
[ 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 16.6   n/a MPO454524  

212241 (2005 JN44)          Discovered 2005-May-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 JN44 = 2002 TQ335 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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