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JPL Small-Body Database Browser
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173890 (2001 UM90)
Classification: Main-belt Asteroid          SPK-ID: 2173890
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07620853236390544 4.3013e-08  
a 2.924303616500362 2.126e-08 au
q 2.701446729700408 1.2723e-07 au
i 2.197954814733691 4.4014e-06 deg
node 154.3722816393211 0.00012733 deg
peri 259.8140927221265 0.00013063 deg
M 169.018882255262 2.9333e-05 deg
tp 2457742.939352610810
(2016-Dec-20.43935261)
0.00014695 TDB
period 1826.552329188042
5.00
1.9919e-05
5.454e-08
d
yr
n .1970926286902664 2.1493e-09 deg/d
Q 3.147160503300315 2.288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      9571 days (26.20 yr)  
   first obs. used      1993-02-23  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58478  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:42:28  

Additional Information
 Earth MOID = 1.7133 au 
 Jupiter MOID = 2.12088 au 
 T_jup = 3.273 
[ 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 MPO436863  

173890 (2001 UM90)          Discovered 2001-Oct-21 by Spacewatch at Kitt Peak
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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