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434177 (2002 UP21)
Classification: Mars-crossing Asteroid          SPK-ID: 2434177
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .253547328187659 5.4727e-08  
a 2.228137335254288 1.6286e-08 au
q 1.663199067065393 1.3019e-07 au
i 3.683672829796662 6.0947e-06 deg
node 67.81507885077363 7.289e-05 deg
peri 266.9499973914332 7.526e-05 deg
M 142.5837433423254 1.6821e-05 deg
tp 2458519.351792468593
(2019-Feb-04.85179247)
5.374e-05 TDB
period 1214.818398303959
3.33
1.3319e-05
3.647e-08
d
yr
n .2963405892622352 3.2491e-09 deg/d
Q 2.793075603443183 2.0416e-08 au
  Orbit Determination Parameters
   # obs. used (total)      189  
   data-arc span      6268 days (17.16 yr)  
   first obs. used      2002-10-09  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65298  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 22:45:09  

Additional Information
 Earth MOID = .658568 au 
 Jupiter MOID = 2.59436 au 
 T_jup = 3.599 
[ 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 17.1   n/a MPO450437  

434177 (2002 UP21)          Discovered 2002-Oct-30 by NEAT at Palomar
Reference: Last Updated: 2015-06-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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