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22444 (1996 TK12)
Classification: Main-belt Asteroid          SPK-ID: 2022444
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2198064635162595 7.4975e-08  
a 2.297493408269952 1.5143e-08 AU
q 1.792489507246216 1.7523e-07 AU
i 1.525146739400671 7.8127e-06 deg
node 24.86233772592047 0.00022759 deg
peri 329.8587195951271 0.00022804 deg
M 41.81739688054849 1.9566e-05 deg
tp 2456652.747672210220
(2013-Dec-26.24767221)
6.8578e-05 JED
period 1271.978697197737
3.48
1.2575e-05
3.443e-08
d
yr
n .2830236078584545 2.7981e-09 deg/d
Q 2.802497309293688 1.8471e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      695  
   data-arc span      11244 days (30.78 yr)  
   first obs. used      1982-09-28  
   last obs. used      2013-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53472  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 19:59:19  

Additional Information
 Earth MOID = .786581 AU 
 T_jup = 3.561 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0 mag n/a MPO266073  

22444 (1996 TK12)          Discovered 1996-Oct-15 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 TK12 = 1982 SW11 = 1999 NY12 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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