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173304 (1999 UM32)
Classification: Main-belt Asteroid          SPK-ID: 2173304
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1953799173336117 6.0988e-08  
a 2.53353374503701 1.4095e-08 au
q 2.038532131369764 1.5985e-07 au
i 2.914436260070611 1.4646e-05 deg
node 50.96653882863589 0.00023033 deg
peri 37.6335842021951 0.00024366 deg
M 49.12562997033501 7.7004e-05 deg
tp 2458999.500906602529
(2020-May-30.00090660)
0.000314 TDB
period 1472.95156656077
4.03
1.2292e-05
3.365e-08
d
yr
n .2444072216444785 2.0396e-09 deg/d
Q 3.028535358704257 1.6849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      9240 days (25.30 yr)  
   first obs. used      1995-12-26  
   last obs. used      2021-04-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6655  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:02:35  

Additional Information
 Earth MOID = 1.05557 au 
 Jupiter MOID = 2.18735 au 
 T_jup = 3.421 
[ 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 17.18   n/a MPCxxxxx  

173304 (1999 UM32)          Discovered 1999-Oct-31 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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