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118162 (1951 SX)
Classification: Mars-crossing Asteroid          SPK-ID: 2118162
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .253808022418975 5.8828e-08  
a 1.874782362823684 6.2257e-09 au
q 1.398947558849432 1.1145e-07 au
i 39.10280495512968 8.4554e-06 deg
node 194.4324630823583 7.0966e-06 deg
peri 212.3135375556276 1.3463e-05 deg
M 331.7416612559617 1.4437e-05 deg
tp 2459274.098479436698
(2021-Feb-28.59847944)
3.7846e-05 TDB
period 937.6153650504643
2.57
4.6704e-06
1.279e-08
d
yr
n .3839527522894466 1.9125e-09 deg/d
Q 2.350617166797937 7.8058e-09 au
  Orbit Determination Parameters
   # obs. used (total)      640  
   data-arc span      25337 days (69.37 yr)  
   first obs. used      1951-09-29  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46865  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:55:59  

Additional Information
 Earth MOID = .437299 au 
 Jupiter MOID = 3.18017 au 
 T_jup = 3.677 
[ 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 16.00   n/a E2021B55  
diameter diameter 1.399 km 0.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.399   0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

118162 (1951 SX)          Discovered 1951-Sep-29 by Wilson, A. G. at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1951 SX = 1997 XJ9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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