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268940 (2007 DS28)
Classification: Main-belt Asteroid          SPK-ID: 2268940
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1709974132212337 7.079e-08  
a 2.559184656174169 1.7985e-08 au
q 2.121570700012914 1.843e-07 au
i 3.009209618568043 9.1095e-06 deg
node 121.1386898538743 0.00010482 deg
peri 334.2622682099303 0.00010837 deg
M 136.7454624915947 2.328e-05 deg
tp 2458432.483063298625
(2018-Nov-09.98306330)
9.7541e-05 TDB
period 1495.377568561473
4.09
1.5764e-05
4.316e-08
d
yr
n .2407418752083554 2.5378e-09 deg/d
Q 2.996798612335424 2.1061e-08 au
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      6325 days (17.32 yr)  
   first obs. used      2001-10-15  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56699  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 08:55:24  

Additional Information
 Earth MOID = 1.13884 au 
 Jupiter MOID = 2.17701 au 
 T_jup = 3.413 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457202.5 (2015-Jun-29.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718006578698145 7.1227e-08  
q 2.119637034934594 1.8638e-07 au
tp 2456938.654613354012
(2014-Oct-08.15461335)
0.00010094 TDB
node 121.1525536070441 0.00010483 deg
peri 334.5129455441621 0.00010829 deg
i 3.009303362309026 9.1103e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      6325 days (17.32 yr)  
   first obs. used      2001-10-15  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56699  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 08:55:24  

Additional Information
 Jupiter MOID = 2.17701 au 
 T_jup = 3.413 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.07329460212121E-15 -1.323250254537957E-14 4.745228747210438E-12 -4.527893846896963E-14 1.287662434328317E-12 -3.926835830948395E-16
q -1.323250254537957E-14 3.473677254437994E-14 -1.272323380571059E-11 1.167290812700024E-13 -3.439101819544059E-12 1.13693534423792E-15
tp 4.745228747210438E-12 -1.272323380571059E-11 1.018809526572347E-8 -7.112356379413458E-11 2.764401565675719E-9 -1.396037701091336E-12
node -4.527893846896963E-14 1.167290812700024E-13 -7.112356379413458E-11 1.098887084402337E-8 -1.099163533102213E-8 3.506200786164165E-10
peri 1.287662434328317E-12 -3.439101819544059E-12 2.764401565675719E-9 -1.099163533102213E-8 1.172690071058764E-8 -3.50481157258422E-10
i -3.926835830948395E-16 1.13693534423792E-15 -1.396037701091336E-12 3.506200786164165E-10 -3.50481157258422E-10 8.299724346521002E-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 17.1   n/a MPO427490  

268940 (2007 DS28)          Discovered 2007-Feb-17 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ show close-approach data ]
Alternate Designations
 2007 DS28 = 2005 QL24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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