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243439 (2009 DZ112)
Classification: Main-belt Asteroid          SPK-ID: 2243439
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1804661278001089 4.2596e-08  
a 2.22087913752418 1.1149e-08 au
q 1.820085679263145 9.3673e-08 au
i 5.896200319959591 4.5784e-06 deg
node 144.2975975018803 4.2196e-05 deg
peri 176.665305251123 4.4841e-05 deg
M 53.34917352744974 1.3689e-05 deg
tp 2459021.352394139343
(2020-Jun-20.85239414)
4.6345e-05 TDB
period 1208.887295632664
3.31
9.103e-06
2.492e-08
d
yr
n .2977945101256079 2.2424e-09 deg/d
Q 2.621672595785214 1.3161e-08 au
  Orbit Determination Parameters
   # obs. used (total)      497  
   data-arc span      9039 days (24.75 yr)  
   first obs. used      1996-04-14  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56566  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 01:43:37  

Additional Information
 Earth MOID = .805448 au 
 Jupiter MOID = 2.68736 au 
 T_jup = 3.621 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458117.5 (2017-Dec-30.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1804638836514093 4.2573e-08  
q 1.820426982625679 9.37e-08 au
tp 2457812.916779578856
(2017-Feb-28.41677958)
4.9864e-05 TDB
node 144.3186570550101 4.222e-05 deg
peri 176.8465152122833 4.4867e-05 deg
i 5.894290848954951 4.5771e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      497  
   data-arc span      9039 days (24.75 yr)  
   first obs. used      1996-04-14  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56566  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 01:43:37  

Additional Information
 Jupiter MOID = 2.68736 au 
 T_jup = 3.621 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.812463304467046E-15 -3.970287272225763E-15 9.320866021777836E-13 1.953843736018911E-14 2.26732444209948E-13 -2.52885116318254E-15
q -3.970287272225763E-15 8.779715090082044E-15 -2.28297982952267E-12 -4.149765929759132E-14 -5.666561493291718E-13 6.184977274024873E-15
tp 9.320866021777836E-13 -2.28297982952267E-12 2.48639391833212E-9 2.564962258595113E-12 7.705044181676551E-10 -5.861952360771378E-12
node 1.953843736018911E-14 -4.149765929759132E-14 2.564962258595113E-12 1.782521649569784E-9 -1.772651720058435E-9 1.109131325262043E-10
peri 2.26732444209948E-13 -5.666561493291718E-13 7.705044181676551E-10 -1.772651720058435E-9 2.013089062852666E-9 -1.12109281092452E-10
i -2.52885116318254E-15 6.184977274024873E-15 -5.861952360771378E-12 1.109131325262043E-10 -1.12109281092452E-10 2.095001800110361E-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 17.32   n/a E2021B55  
diameter diameter 1.123 km 0.137 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.185   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243439 (2009 DZ112)          Discovered 2009-Feb-27 by CSS at Catalina
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

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