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243899 (2001 DA12)
Classification: Outer Main-belt Asteroid          SPK-ID: 2243899
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09956877853601556 4.2591e-08  
a 3.232547777445009 3.0811e-08 au
q 2.910686943685498 1.3359e-07 au
i 6.701862548552918 4.8532e-06 deg
node 127.8479266296295 4.6789e-05 deg
peri 359.1585377695885 5.5656e-05 deg
M 141.4524183248585 2.8821e-05 deg
tp 2458166.389224642328
(2018-Feb-16.88922464)
0.00016919 TDB
period 2122.833124274633
5.81
3.035e-05
8.309e-08
d
yr
n .169584691271016 2.4246e-09 deg/d
Q 3.55440861120452 3.3879e-08 au
  Orbit Determination Parameters
   # obs. used (total)      392  
   data-arc span      8892 days (24.34 yr)  
   first obs. used      1995-01-28  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60311  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:26:10  

Additional Information
 Earth MOID = 1.92588 au 
 Jupiter MOID = 1.49646 au 
 T_jup = 3.168 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457189.5 (2015-Jun-16.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1011004869737083 4.2307e-08  
q 2.899951986098586 1.3386e-07 au
tp 2458157.738133300396
(2018-Feb-08.23813330)
0.00016604 TDB
node 127.9457245472076 4.6924e-05 deg
peri 357.1831059858756 5.5446e-05 deg
i 6.695922553250108 4.849e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      392  
   data-arc span      8892 days (24.34 yr)  
   first obs. used      1995-01-28  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60311  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:26:10  

Additional Information
 Jupiter MOID = 1.49646 au 
 T_jup = 3.168 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.789859352719858E-15 -5.541813225872279E-15 1.227919696054758E-12 -1.491851257955501E-14 2.181326186709366E-13 -4.272360537395256E-16
q -5.541813225872279E-15 1.791867524436748E-14 -3.858246453693439E-12 3.45554668333446E-14 -7.41764907370595E-13 2.683779703163312E-15
tp 1.227919696054758E-12 -3.858246453693439E-12 2.756793692134746E-8 -9.074961881976157E-12 4.940644411735976E-9 -5.385596246208013E-12
node -1.491851257955501E-14 3.45554668333446E-14 -9.074961881976157E-12 2.201821422739837E-9 -2.187350325684568E-9 4.150312141484771E-11
peri 2.181326186709366E-13 -7.41764907370595E-13 4.940644411735976E-9 -2.187350325684568E-9 3.074258013457666E-9 -4.226567973368458E-11
i -4.272360537395256E-16 2.683779703163312E-15 -5.385596246208013E-12 4.150312141484771E-11 -4.226567973368458E-11 2.351310761774081E-11

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 15.1   n/a MPO437138  
diameter diameter 5.205 km 3.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.094   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243899 (2001 DA12)          Discovered 2001-Feb-17 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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