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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1893385143396694 6.2608e-08  
a 3.130833883036773 2.7938e-08 au
q 2.538046446978292 1.9295e-07 au
i 13.30708320523983 7.2378e-06 deg
node 212.3836288223137 2.4228e-05 deg
peri 235.4996223792155 2.872e-05 deg
M 212.5292874077796 1.8266e-05 deg
tp 2459829.380156722554
(2022-Sep-06.88015672)
0.00010771 TDB
period 2023.431304934653
5.54
2.7084e-05
7.415e-08
d
yr
n .1779156026310595 2.3814e-09 deg/d
Q 3.723621319095253 3.3227e-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 = 1.58068 au 
 Jupiter MOID = 1.7391 au 
 T_jup = 3.144 
[ 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 15.2   n/a MPO475039  
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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