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135239 (2001 SH9)
Classification: Main-belt Asteroid          SPK-ID: 2135239
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2816653962999787 4.2753e-08  
a 3.060604696362558 1.8389e-08 au
q 2.198538261644022 1.3255e-07 au
i 13.40973832401219 4.7081e-06 deg
node 46.73608752548501 1.8562e-05 deg
peri 332.9990435912246 1.9707e-05 deg
M 200.7603016015473 8.8137e-06 deg
tp 2460065.583707704264
(2023-May-01.08370770)
5.3603e-05 TDB
period 1955.731754742894
5.35
1.7625e-05
4.825e-08
d
yr
n .1840743236524923 1.6589e-09 deg/d
Q 3.922671131081094 2.3568e-08 au
  Orbit Determination Parameters
   # obs. used (total)      858  
   data-arc span      9850 days (26.97 yr)  
   first obs. used      1994-05-02  
   last obs. used      2021-04-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52147  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:20:56  

Additional Information
 Earth MOID = 1.20986 au 
 Jupiter MOID = 1.56598 au 
 T_jup = 3.132 
[ 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 14.56   n/a E2021B55  
diameter diameter 9.117 km 0.390 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

135239 (2001 SH9)          Discovered 2001-Sep-19 by Juels, C. W., Holvorcem, P. R. at Fountain Hills
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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