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JPL Small-Body Database Browser
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344321 (2001 UF221)
Classification: Main-belt Asteroid          SPK-ID: 2344321
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .136611866488304 8.8177e-08  
a 2.410710401639101 2.4701e-08 au
q 2.081378754108415 2.0851e-07 au
i 4.645900359827111 1.2278e-05 deg
node 217.0276740157978 7.8945e-05 deg
peri 141.6738721797475 8.7324e-05 deg
M 278.3202519638364 3.7124e-05 deg
tp 2458910.690060956326
(2020-Mar-02.19006096)
0.00014317 TDB
period 1367.149441925755
3.74
2.1012e-05
5.753e-08
d
yr
n .2633216157356631 4.0471e-09 deg/d
Q 2.740042049169788 2.8075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      117  
   data-arc span      5955 days (16.30 yr)  
   first obs. used      2001-10-23  
   last obs. used      2018-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62852  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:43:39  

Additional Information
 Earth MOID = 1.07949 au 
 Jupiter MOID = 2.71647 au 
 T_jup = 3.503 
[ 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 17.4   n/a MPO437458  

344321 (2001 UF221)          Discovered 2001-Oct-23 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

Alternate Designations
 2001 UF221 = 2012 SE51 = 2012 UH81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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