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129884 (1999 TB4)
Classification: Main-belt Asteroid          SPK-ID: 2129884
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08618525590159848 5.7274e-08  
a 3.063860803505096 3.4551e-08 au
q 2.799801176108132 1.7875e-07 au
i 4.447383549191079 7.0636e-06 deg
node 339.66607975557 7.6399e-05 deg
peri 108.6303881154571 8.5514e-05 deg
M 258.238905859267 3.9802e-05 deg
tp 2459554.208563167462
(2021-Dec-05.70856317)
0.00021919 TDB
period 1958.853571922202
5.36
3.3135e-05
9.072e-08
d
yr
n .1837809651319347 3.1087e-09 deg/d
Q 3.32792043090206 3.7529e-08 au
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      6819 days (18.67 yr)  
   first obs. used      1999-10-02  
   last obs. used      2018-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55189  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:40:19  

Additional Information
 Earth MOID = 1.82036 au 
 Jupiter MOID = 1.83173 au 
 T_jup = 3.223 
[ 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 15.6   n/a MPO449743  

129884 (1999 TB4)          Discovered 1999-Oct-02 by Sarounova, L. at Ondrejov
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

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