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120423 (2061 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2120423
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 .1401090647129122 3.9835e-08  
a 2.317312760723947 9.0816e-09 au
q 1.992636237171619 9.3224e-08 au
i .1681945748614553 4.0861e-06 deg
node 169.6424139135078 0.0016276 deg
peri 208.7699559308283 0.0016278 deg
M 129.5391468795702 1.785e-05 deg
tp 2458736.867428911162
(2019-Sep-10.36742891)
6.398e-05 TDB
period 1288.473250075918
3.53
7.5744e-06
2.074e-08
d
yr
n .2794004454332199 1.6425e-09 deg/d
Q 2.641989284276276 1.0354e-08 au
  Orbit Determination Parameters
   # obs. used (total)      448  
   data-arc span      16893 days (46.25 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5494  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:57:16  

Additional Information
 Earth MOID = .993123 au 
 Jupiter MOID = 2.8187 au 
 T_jup = 3.567 
[ 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 17.1   n/a MPO453675  

120423 (2061 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2061 T-2 = 2001 PK28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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