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213314 (2001 SG9)
Classification: Main-belt Asteroid          SPK-ID: 2213314
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2719225167168223 5.222e-08  
a 2.718485464904161 9.5575e-09 au
q 1.979268055629321 1.4069e-07 au
i 12.65313002390282 4.5553e-06 deg
node 47.67292838494871 1.6421e-05 deg
peri 307.4095403582842 1.7726e-05 deg
M 111.0518100868065 6.2303e-06 deg
tp 2458695.475914686676
(2019-Jul-30.97591469)
2.7713e-05 TDB
period 1637.151799423
4.48
8.6337e-06
2.364e-08
d
yr
n .2198940868689629 1.1596e-09 deg/d
Q 3.457702874179001 1.2156e-08 au
  Orbit Determination Parameters
   # obs. used (total)      850  
   data-arc span      7620 days (20.86 yr)  
   first obs. used      2000-04-29  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4742  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:42:13  

Additional Information
 Earth MOID = 1.00303 au 
 Jupiter MOID = 2.09448 au 
 T_jup = 3.271 
[ 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 15.24   n/a MPCxxxxx  
diameter diameter 5.615 km 0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

213314 (2001 SG9)          Discovered 2001-Sep-19 by Juels, C. W., Holvorcem, P. R. at Fountain Hills
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2001 SG9 = 2000 HG94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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