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JPL Small-Body Database Browser
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442480 (2011 UM326)
Classification: Main-belt Asteroid          SPK-ID: 2442480
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1536172067521935 6.8764e-08  
a 2.801253507198745 4.8772e-08 au
q 2.370932768018088 1.9957e-07 au
i 16.29590322556558 7.9807e-06 deg
node 89.11911828713794 2.0034e-05 deg
peri 304.3099768062902 3.3571e-05 deg
M 300.3787856586559 3.3635e-05 deg
tp 2459284.112496885642
(2021-Mar-10.61249689)
0.00016608 TDB
period 1712.486067363273
4.69
4.4724e-05
1.224e-07
d
yr
n .2102206884253923 5.4902e-09 deg/d
Q 3.231574246379402 5.6264e-08 au
  Orbit Determination Parameters
   # obs. used (total)      108  
   data-arc span      4354 days (11.92 yr)  
   first obs. used      2007-09-18  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62087  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:41:10  

Additional Information
 Earth MOID = 1.41937 au 
 Jupiter MOID = 2.2341 au 
 T_jup = 3.249 
[ 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 16.5   n/a MPO437720  

442480 (2011 UM326)          Discovered 2007-Sep-18 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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