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135255 (2001 SP45)
Classification: Main-belt Asteroid          SPK-ID: 2135255
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09388705406422419 6.63e-08  
a 3.048145131369262 2.0867e-08 au
q 2.761963764624794 2.0163e-07 au
i 10.0361291634634 6.5851e-06 deg
node 39.40949139581795 2.5029e-05 deg
peri 333.5590087138483 3.2008e-05 deg
M 214.4049314966393 2.1103e-05 deg
tp 2459986.633046581428
(2023-Feb-11.13304658)
0.00011693 TDB
period 1943.801391616375
5.32
1.996e-05
5.465e-08
d
yr
n .1852041065268714 1.9018e-09 deg/d
Q 3.33432649811373 2.2826e-08 au
  Orbit Determination Parameters
   # obs. used (total)      683  
   data-arc span      8600 days (23.55 yr)  
   first obs. used      1996-10-05  
   last obs. used      2020-04-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60145  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:12:11  

Additional Information
 Earth MOID = 1.76621 au 
 Jupiter MOID = 2.132 au 
 T_jup = 3.208 
[ show covariance matrix ]

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 14.79   n/a E2021B55  
diameter diameter 4.508 km 0.514 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.126   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

135255 (2001 SP45)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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