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180870 (2005 JR44)
Classification: Main-belt Asteroid          SPK-ID: 2180870
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1928484703770901 3.9692e-08  
a 2.362076677223201 1.0899e-08 au
q 1.906553803107307 9.0239e-08 au
i 2.265336876645764 3.7274e-06 deg
node 111.89645425 0.00011155 deg
peri 192.2979445610102 0.00011214 deg
M 54.96648467758432 1.0602e-05 deg
tp 2458998.042030756319
(2020-May-28.54203076)
3.9247e-05 TDB
period 1325.987451357756
3.63
9.1775e-06
2.513e-08
d
yr
n .2714957819784606 1.8791e-09 deg/d
Q 2.817599551339095 1.3001e-08 au
  Orbit Determination Parameters
   # obs. used (total)      422  
   data-arc span      7237 days (19.81 yr)  
   first obs. used      2001-03-15  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4975  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:28:17  

Additional Information
 Earth MOID = .889414 au 
 Jupiter MOID = 2.41858 au 
 T_jup = 3.524 
[ 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 17.16   n/a E2021B55  

180870 (2005 JR44)          Discovered 2005-May-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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