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344723 (2003 UD101)
Classification: Main-belt Asteroid          SPK-ID: 2344723
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2037551764623292 7.9971e-08  
a 2.66176705154399 2.2328e-08 au
q 2.119418236255031 2.139e-07 au
i 2.984430065213461 8.9369e-06 deg
node 92.8399470835536 0.00021536 deg
peri 251.5993803918688 0.00021712 deg
M 326.4020092934188 2.8553e-05 deg
tp 2459148.534962854860
(2020-Oct-26.03496285)
0.00012651 TDB
period 1586.183742151893
4.34
1.9958e-05
5.464e-08
d
yr
n .226959834748783 2.8557e-09 deg/d
Q 3.20411586683295 2.6877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      7065 days (19.34 yr)  
   first obs. used      1999-11-28  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52721  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:05:41  

Additional Information
 Earth MOID = 1.11417 au 
 Jupiter MOID = 2.21137 au 
 T_jup = 3.353 
[ 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 16.9   n/a MPO471582  
rotation period rot_per 3.92 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

344723 (2003 UD101)          Discovered 2003-Oct-20 by NEAT at Palomar
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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