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JPL Small-Body Database Browser
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344316 (2001 UD201)
Classification: Main-belt Asteroid          SPK-ID: 2344316
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1596677651290208 1.0286e-07  
a 3.050559164031044 3.7999e-08 au
q 2.563483199916353 3.0222e-07 au
i 6.310934057849355 1.0855e-05 deg
node 356.9950973532246 7.2195e-05 deg
peri 16.9897109223547 7.7009e-05 deg
M 184.3693896104691 2.6266e-05 deg
tp 2459949.935169994543
(2023-Jan-05.43516999)
0.00015013 TDB
period 1946.110990788935
5.33
3.6362e-05
9.955e-08
d
yr
n .1849843106091598 3.4563e-09 deg/d
Q 3.537635128145734 4.4066e-08 au
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      6347 days (17.38 yr)  
   first obs. used      2001-09-20  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61466  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:42:51  

Additional Information
 Earth MOID = 1.56478 au 
 Jupiter MOID = 1.93756 au 
 T_jup = 3.208 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456981.5 (2014-Nov-20.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1588498732112164 1.027e-07  
q 2.566595834257243 3.0149e-07 au
tp 2456059.007743871396
(2012-May-11.50774387)
0.00013109 TDB
node 357.0190116769386 7.2205e-05 deg
peri 17.47513854080018 7.7089e-05 deg
i 6.309853864554325 1.0852e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      6347 days (17.38 yr)  
   first obs. used      2001-09-20  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61466  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:42:51  

Additional Information
 Jupiter MOID = 1.93756 au 
 T_jup = 3.208 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.054703919484678E-14 -3.081882348646579E-14 -1.581755035760741E-12 1.162926236094958E-13 -4.132321284986825E-13 -1.174926238005003E-14
q -3.081882348646579E-14 9.089622908621307E-14 4.834672831972707E-12 -3.317315024406672E-13 1.330735548571451E-12 3.74210176985016E-14
tp -1.581755035760741E-12 4.834672831972707E-12 1.718569242339306E-8 -3.549150612596704E-11 3.58564309114925E-9 -3.960446253063187E-12
node 1.162926236094958E-13 -3.317315024406672E-13 -3.549150612596704E-11 5.213541419239728E-9 -5.185499405326898E-9 8.877355443984752E-11
peri -4.132321284986825E-13 1.330735548571451E-12 3.58564309114925E-9 -5.185499405326898E-9 5.942772545371064E-9 -8.849994014960944E-11
i -1.174926238005003E-14 3.74210176985016E-14 -3.960446253063187E-12 8.877355443984752E-11 -8.849994014960944E-11 1.177711165230521E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO334856  

344316 (2001 UD201)          Discovered 2001-Oct-19 by NEAT at Palomar
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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