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362307 (2009 TU21)
Classification: Main-belt Asteroid          SPK-ID: 2362307
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1565311949309222 5.6607e-08  
a 3.086072601308726 3.2007e-08 au
q 2.603005969382291 1.6426e-07 au
i 2.550622835444571 6.9198e-06 deg
node 55.21648053392512 0.00011092 deg
peri 249.6984261764676 0.00011353 deg
M 83.3661515655559 2.576e-05 deg
tp 2458741.941352320376
(2019-Sep-15.44135232)
0.00013813 TDB
period 1980.193520566333
5.42
3.0806e-05
8.434e-08
d
yr
n .1818004130712641 2.8283e-09 deg/d
Q 3.569139233235161 3.7017e-08 au
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      8125 days (22.25 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-12-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60075  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 09:39:02  

Additional Information
 Earth MOID = 1.58732 au 
 Jupiter MOID = 1.67745 au 
 T_jup = 3.206 
[ show covariance matrix ]

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 16.10   n/a MPCxxxxx  

362307 (2009 TU21)          Discovered 2009-Oct-12 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-04-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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