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118413 (1999 SP1)
Classification: Main-belt Asteroid          SPK-ID: 2118413
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1895227829661138 6.2167e-08  
a 3.127702687287248 2.8413e-08 au
q 2.534931769701976 1.909e-07 au
i 13.30773627158672 7.23e-06 deg
node 212.125267199529 2.4279e-05 deg
peri 236.147331422279 2.8841e-05 deg
M 247.63086646292 1.8531e-05 deg
tp 2459831.139476532855
(2022-Sep-08.63947653)
0.00010772 TDB
period 2020.39656625911
5.53
2.7531e-05
7.538e-08
d
yr
n .1781828409392729 2.428e-09 deg/d
Q 3.72047360487252 3.3798e-08 au
  Orbit Determination Parameters
   # obs. used (total)      375  
   data-arc span      9330 days (25.54 yr)  
   first obs. used      1994-11-28  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55457  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:51:55  

Additional Information
 Earth MOID = 1.57774 au 
 Jupiter MOID = 1.74444 au 
 T_jup = 3.145 
[ 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 15.22   n/a E2021B55  
diameter diameter 5.289 km 0.170 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118413 (1999 SP1)          Discovered 1999-Sep-19 by Sarounova, L. at Ondrejov
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1999 SP1 = 1994 WO8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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