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187171 (2005 SN13)
Classification: Main-belt Asteroid          SPK-ID: 2187171
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06412053005636668 6.3387e-08  
a 2.780889428707742 1.7444e-08 au
q 2.602577324510855 1.7041e-07 au
i 4.951119396648901 5.7244e-06 deg
node 196.0472062185602 4.8848e-05 deg
peri 158.6627021219634 5.8552e-05 deg
M 117.1632342631035 3.2821e-05 deg
tp 2458649.231903098694
(2019-Jun-14.73190310)
0.00015329 TDB
period 1693.846334412492
4.64
1.5938e-05
4.364e-08
d
yr
n .2125340372890824 1.9998e-09 deg/d
Q 2.95920153290463 1.8563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      397  
   data-arc span      7442 days (20.38 yr)  
   first obs. used      2000-09-27  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53929  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:18  

Additional Information
 Earth MOID = 1.59685 au 
 Jupiter MOID = 2.32868 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457355.5 (2015-Nov-29.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06535836349640878 6.39e-08  
q 2.597619224745982 1.7207e-07 au
tp 2456945.165851426471
(2014-Oct-14.66585143)
0.00014732 TDB
node 196.0940072902085 4.884e-05 deg
peri 156.4036297273417 5.812e-05 deg
i 4.950338689139688 5.73e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      397  
   data-arc span      7442 days (20.38 yr)  
   first obs. used      2000-09-27  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53929  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:18  

Additional Information
 Jupiter MOID = 2.32868 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.083245242482374E-15 -1.095383515737993E-14 1.29258484606943E-12 8.862192743752874E-15 1.732279369974695E-13 1.101735681378222E-15
q -1.095383515737993E-14 2.960847577164866E-14 -3.259712771865225E-12 -2.30276353892951E-14 -4.128207270689709E-13 -2.871774985970751E-15
tp 1.29258484606943E-12 -3.259712771865225E-12 2.170321285825343E-8 9.979841048118512E-12 4.650611701222121E-9 -3.736602652142148E-12
node 8.862192743752874E-15 -2.30276353892951E-14 9.979841048118512E-12 2.385341727864253E-9 -2.374196557114365E-9 -4.689050726609838E-11
peri 1.732279369974695E-13 -4.128207270689709E-13 4.650611701222121E-9 -2.374196557114365E-9 3.377978402094133E-9 4.589620017080836E-11
i 1.101735681378222E-15 -2.871774985970751E-15 -3.736602652142148E-12 -4.689050726609838E-11 4.589620017080836E-11 3.283344876658383E-11

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 16.09   n/a MPCxxxxx  

187171 (2005 SN13)          Discovered 2005-Sep-24 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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