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JPL Small-Body Database Browser
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212995 (1230 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2212995
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2298229379278903 5.6963e-08  
a 2.225834249424077 9.7096e-09 au
q 1.714286482880915 1.2945e-07 au
i 2.772296971743219 6.3798e-06 deg
node 17.13170905011738 0.00012866 deg
peri 299.4057732387189 0.00012939 deg
M 291.1983568122083 1.3445e-05 deg
tp 2458832.310961209846
(2019-Dec-14.81096121)
4.5817e-05 TDB
period 1212.935362717506
3.32
7.9367e-06
2.173e-08
d
yr
n .296800646650653 1.9421e-09 deg/d
Q 2.737382015967239 1.1941e-08 au
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      16682 days (45.67 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6171  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:23:25  

Additional Information
 Earth MOID = .702199 au 
 Jupiter MOID = 2.56468 au 
 T_jup = 3.609 
[ 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 17.4   n/a MPO385926  

212995 (1230 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 1230 T-2 = 2003 SY204 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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