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243959 (2001 QM212)
Classification: Main-belt Asteroid          SPK-ID: 2243959
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2768918595737537 5.5485e-08  
a 2.787772207376877 1.3792e-08 au
q 2.015860776808265 1.5525e-07 au
i 2.942790961680113 5.7791e-06 deg
node 164.578823940653 9.3068e-05 deg
peri 219.6337973018407 9.3582e-05 deg
M 351.6453062213628 8.1322e-06 deg
tp 2459039.955939476424
(2020-Jul-09.45593948)
3.8526e-05 TDB
period 1700.138699018792
4.65
1.2617e-05
3.454e-08
d
yr
n .2117474299054355 1.5714e-09 deg/d
Q 3.559683637945489 1.7611e-08 au
  Orbit Determination Parameters
   # obs. used (total)      401  
   data-arc span      8857 days (24.25 yr)  
   first obs. used      1994-03-05  
   last obs. used      2018-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53775  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:35:05  

Additional Information
 Earth MOID = 1.02059 au 
 Jupiter MOID = 1.89708 au 
 T_jup = 3.271 
[ 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 16.1   n/a MPO446288  
diameter diameter 3.009 km 0.630 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243959 (2001 QM212)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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