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357007 (1999 TH61)
Classification: Main-belt Asteroid          SPK-ID: 2357007
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1562384256788101 1.2151e-07  
a 3.180417792224757 3.7643e-08 au
q 2.683514323366684 3.798e-07 au
i 9.647457047226654 1.1854e-05 deg
node 352.5941093886584 4.6888e-05 deg
peri 33.55922300088394 5.9423e-05 deg
M 213.6927587481232 3.6307e-05 deg
tp 2459842.453310801984
(2022-Sep-19.95331080)
0.00021674 TDB
period 2071.689612183336
5.67
3.678e-05
1.007e-07
d
yr
n .1737712048575651 3.0851e-09 deg/d
Q 3.67732126108283 4.3524e-08 au
  Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      7141 days (19.55 yr)  
   first obs. used      1999-10-06  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64508  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:33:40  

Additional Information
 Earth MOID = 1.69308 au 
 Jupiter MOID = 1.83956 au 
 T_jup = 3.159 
[ 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 16.0   n/a MPO260703  

357007 (1999 TH61)          Discovered 1999-Oct-07 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1999 TH61 = 2005 UR489 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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