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JPL Small-Body Database Browser
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185978 (2001 MO9)
Classification: Mars-crossing Asteroid          SPK-ID: 2185978
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .303523896256473 3.707e-08  
a 2.357108588664447 6.8312e-09 au
q 1.641669805933418 8.8762e-08 au
i 5.370378865513981 4.1425e-06 deg
node 186.6517309420688 3.9789e-05 deg
peri 110.5759114444291 4.0813e-05 deg
M 89.05304574078713 5.9621e-06 deg
tp 2458673.525345820849
(2019-Jul-09.02534582)
2.2267e-05 TDB
period 1321.806284392826
3.62
5.7462e-06
1.573e-08
d
yr
n .2723545834595322 1.184e-09 deg/d
Q 3.072547371395476 8.9047e-09 au
  Orbit Determination Parameters
   # obs. used (total)      723  
   data-arc span      6724 days (18.41 yr)  
   first obs. used      2001-06-21  
   last obs. used      2019-11-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52782  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:32:32  

Additional Information
 Earth MOID = .635997 au 
 Jupiter MOID = 2.19134 au 
 T_jup = 3.484 
[ 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 16.1   n/a MPO502996  

185978 (2001 MO9)          Discovered 2001-Jun-21 by NEAT at Palomar
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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