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243435 (2009 DL55)
Classification: Main-belt Asteroid          SPK-ID: 2243435
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .07710769044940588 5.3613e-08  
a 2.797588317870438 2.9823e-08 au
q 2.58187274385121 1.5569e-07 au
i 5.147167574231164 5.2235e-06 deg
node 131.9118212448523 7.5304e-05 deg
peri 203.2217498890014 8.5879e-05 deg
M 336.5830322199665 4.3196e-05 deg
tp 2459111.673759747014
(2020-Sep-19.17375975)
0.0002055 TDB
period 1709.126215011084
4.68
2.733e-05
7.483e-08
d
yr
n .2106339466554057 3.3681e-09 deg/d
Q 3.013303891889666 3.2123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      6960 days (19.06 yr)  
   first obs. used      2000-05-05  
   last obs. used      2019-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59184  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:21:00  

Additional Information
 Earth MOID = 1.57252 au 
 Jupiter MOID = 2.27158 au 
 T_jup = 3.316 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457094.5 (2015-Mar-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07799155338707453 5.3717e-08  
q 2.577824620933514 1.5599e-07 au
tp 2457410.901741527597
(2016-Jan-23.40174153)
0.00019956 TDB
node 131.9868344414814 7.5448e-05 deg
peri 204.7714141384406 8.5822e-05 deg
i 5.143156212864998 5.2195e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      6960 days (19.06 yr)  
   first obs. used      2000-05-05  
   last obs. used      2019-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59184  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:21:00  

Additional Information
 Jupiter MOID = 2.27158 au 
 T_jup = 3.316 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.885515622566135E-15 -8.255599844859812E-15 1.225395932070578E-12 -2.649555728116642E-14 3.832973409839234E-13 8.240936605396938E-16
q -8.255599844859812E-15 2.433186152769601E-14 -2.975948803393145E-12 8.142945242664715E-14 -1.01795987970559E-12 -1.366847657592075E-15
tp 1.225395932070578E-12 -2.975948803393145E-12 3.982345945592254E-8 3.893878370499043E-11 8.21800835744103E-9 9.711580439442389E-12
node -2.649555728116642E-14 8.142945242664715E-14 3.893878370499043E-11 5.692390924640327E-9 -5.661924142581679E-9 2.803539250387891E-11
peri 3.832973409839234E-13 -1.01795987970559E-12 8.21800835744103E-9 -5.661924142581679E-9 7.365418541592792E-9 -2.589239741050066E-11
i 8.240936605396938E-16 -1.366847657592075E-15 9.711580439442389E-12 2.803539250387891E-11 -2.589239741050066E-11 2.72436369056801E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO396766  
diameter diameter 3.814 km 0.571 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243435 (2009 DL55)          Discovered 2009-Feb-22 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

Alternate Designations
 2009 DL55 = 2005 GS149 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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