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216554 (2001 UJ173)
Classification: Main-belt Asteroid          SPK-ID: 2216554
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06625909914214578 4.0033e-08  
a 2.707091939517406 1.9787e-08 au
q 2.527722466310019 1.176e-07 au
i 11.3881075157921 4.6835e-06 deg
node 206.9701526904074 1.8947e-05 deg
peri 49.4196911715331 4.304e-05 deg
M 244.6215872309385 4.0831e-05 deg
tp 2459721.904763941729
(2022-May-22.40476394)
0.00018778 TDB
period 1626.87031754137
4.45
1.7837e-05
4.884e-08
d
yr
n .2212837717415946 2.4262e-09 deg/d
Q 2.886461412724794 2.1098e-08 au
  Orbit Determination Parameters
   # obs. used (total)      439  
   data-arc span      7114 days (19.48 yr)  
   first obs. used      2001-10-11  
   last obs. used      2021-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49245  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:41:50  

Additional Information
 Earth MOID = 1.52857 au 
 Jupiter MOID = 2.13266 au 
 T_jup = 3.333 
[ 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 15.94   n/a MPCxxxxx  

216554 (2001 UJ173)          Discovered 2001-Oct-18 by NEAT at Palomar
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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