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212749 (2007 TM4)
Classification: Main-belt Asteroid          SPK-ID: 2212749
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1244543523936262 8.4395e-08  
a 2.17015818712638 1.6598e-08 au
q 1.90007255535584 1.9364e-07 au
i 3.912111255573894 5.6744e-06 deg
node 165.3783795412838 0.00011136 deg
peri 157.303444718399 0.00011681 deg
M 31.61301919690654 3.3541e-05 deg
tp 2458897.958659981671
(2020-Feb-18.45865998)
0.00010856 TDB
period 1167.711384245478
3.20
1.3396e-05
3.668e-08
d
yr
n .3082953586451636 3.5368e-09 deg/d
Q 2.440243818896919 1.8663e-08 au
  Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      8514 days (23.31 yr)  
   first obs. used      1996-02-10  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59892  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:49:57  

Additional Information
 Earth MOID = .888464 au 
 Jupiter MOID = 2.83089 au 
 T_jup = 3.676 
[ 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 17.8   n/a MPO385925  
diameter diameter 1.346 km 0.284 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.081   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212749 (2007 TM4)          Discovered 2007-Oct-06 by Yeung, W. K. Y. at 7300
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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