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215265 (2001 OB55)
Classification: Main-belt Asteroid          SPK-ID: 2215265
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2070735226271674 5.3409e-08  
a 2.690362930313793 2.1214e-08 au
q 2.133260001188168 1.5327e-07 au
i 13.96664103548803 4.694e-06 deg
node 96.48468850342852 2.2668e-05 deg
peri 294.9563361153924 2.5985e-05 deg
M 34.85954325129268 1.1334e-05 deg
tp 2458844.424791398729
(2019-Dec-26.92479140)
5.0593e-05 TDB
period 1611.81329001992
4.41
1.9064e-05
5.219e-08
d
yr
n .2233509316674954 2.6418e-09 deg/d
Q 3.247465859439419 2.5607e-08 au
  Orbit Determination Parameters
   # obs. used (total)      461  
   data-arc span      6695 days (18.33 yr)  
   first obs. used      2001-07-22  
   last obs. used      2019-11-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53279  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:10:33  

Additional Information
 Earth MOID = 1.18255 au 
 Jupiter MOID = 2.28475 au 
 T_jup = 3.299 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457580.5 (2016-Jul-11.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2070412917723481 5.364e-08  
q 2.133404596644025 1.5369e-07 au
tp 2457227.052888512617
(2015-Jul-23.55288851)
5.2538e-05 TDB
node 96.72306343528223 2.2742e-05 deg
peri 293.8430613810574 2.599e-05 deg
i 13.94144903685679 4.6876e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      461  
   data-arc span      6695 days (18.33 yr)  
   first obs. used      2001-07-22  
   last obs. used      2019-11-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53279  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:10:33  

Additional Information
 Jupiter MOID = 2.28475 au 
 T_jup = 3.299 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.87724120459636E-15 -8.209017270789843E-15 -1.249558119204733E-13 1.226785611738772E-14 -1.050960478366932E-13 -1.682168001027277E-14
q -8.209017270789843E-15 2.362198888063505E-14 1.039818785541298E-13 -3.355889281592909E-14 2.506209164171424E-13 5.001496423787278E-14
tp -1.249558119204733E-13 1.039818785541298E-13 2.760235025788036E-9 1.012516211114715E-11 6.900980343044704E-10 7.159388807798189E-12
node 1.226785611738772E-14 -3.355889281592909E-14 1.012516211114715E-11 5.172045021316617E-10 -4.99453240089497E-10 1.698316157136077E-12
peri -1.050960478366932E-13 2.506209164171424E-13 6.900980343044704E-10 -4.99453240089497E-10 6.754866605348907E-10 4.081431576275734E-13
i -1.682168001027277E-14 5.001496423787278E-14 7.159388807798189E-12 1.698316157136077E-12 4.081431576275734E-13 2.197369150888001E-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 15.8   n/a MPO450015  

215265 (2001 OB55)          Discovered 2001-Jul-22 by NEAT at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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