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190221 (2006 DM12)
Classification: Main-belt Asteroid          SPK-ID: 2190221
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .125884119391673 4.5117e-08  
a 3.038851939288168 2.2698e-08 au
q 2.656308738949199 1.3788e-07 au
i 1.362973561829756 4.8344e-06 deg
node 159.2587388493916 0.00018595 deg
peri 12.07940004020904 0.00018678 deg
M 282.2812342795613 2.05e-05 deg
tp 2459618.220829620329
(2022-Feb-07.72082962)
0.0001128 TDB
period 1934.918771152993
5.30
2.1679e-05
5.935e-08
d
yr
n .1860543219524821 2.0846e-09 deg/d
Q 3.421395139627137 2.5556e-08 au
  Orbit Determination Parameters
   # obs. used (total)      512  
   data-arc span      8141 days (22.29 yr)  
   first obs. used      1998-10-19  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54291  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:06:44  

Additional Information
 Earth MOID = 1.66167 au 
 Jupiter MOID = 1.54433 au 
 T_jup = 3.228 
[ 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 15.4   n/a MPO454313  
diameter diameter 3.683 km 1.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190221 (2006 DM12)          Discovered 2006-Feb-21 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080819/Numbers.arcLast Updated: 2008-08-25

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