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102235 (1999 TN21)
Classification: Main-belt Asteroid          SPK-ID: 2102235
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06230759360540503 4.5913e-08  
a 2.399207699330842 1.2407e-08 au
q 2.249718841025977 1.0903e-07 au
i 6.112044268204073 5.0119e-06 deg
node 243.7216498235551 3.8629e-05 deg
peri 311.4596216284354 5.1242e-05 deg
M 51.82693500232211 3.3887e-05 deg
tp 2458805.087103721272
(2019-Nov-17.58710372)
0.00012767 TDB
period 1357.376095213623
3.72
1.0529e-05
2.883e-08
d
yr
n .2652175776996746 2.0573e-09 deg/d
Q 2.548696557635707 1.318e-08 au
  Orbit Determination Parameters
   # obs. used (total)      559  
   data-arc span      7613 days (20.84 yr)  
   first obs. used      1999-10-13  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57447  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:55:59  

Additional Information
 Earth MOID = 1.25207 au 
 Jupiter MOID = 2.43251 au 
 T_jup = 3.517 
[ 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 16.11   n/a E2021B55  

102235 (1999 TN21)          Discovered 1999-Oct-13 by Bickel, W. at Bergisch Gladbach
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 TN21 = 2001 FD147 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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