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117868 (2147 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117868
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2592527686854578 4.2151e-08  
a 2.738138254660896 1.1678e-08 au
q 2.028268331096492 1.1604e-07 au
i 9.412207864418837 5.5719e-06 deg
node 358.9069909744215 2.5538e-05 deg
peri 45.66504840554121 2.8214e-05 deg
M 39.89771278986601 8.8264e-06 deg
tp 2458817.088321634998
(2019-Nov-29.58832164)
4.0671e-05 TDB
period 1654.937077700647
4.53
1.0588e-05
2.899e-08
d
yr
n .2175309290309577 1.3917e-09 deg/d
Q 3.4480081782253 1.4706e-08 au
  Orbit Determination Parameters
   # obs. used (total)      899  
   data-arc span      21763 days (59.58 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46788  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:15:21  

Additional Information
 Earth MOID = 1.04897 au 
 Jupiter MOID = 2.05858 au 
 T_jup = 3.283 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457026.5 (2015-Jan-04.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2561913429308849 4.1959e-08  
q 2.038081175932235 1.1514e-07 au
tp 2457156.135932803813
(2015-May-13.63593280)
4.5008e-05 TDB
node 359.0747910652962 2.5402e-05 deg
peri 44.78307437898368 2.8285e-05 deg
i 9.437920810576891 5.5804e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      899  
   data-arc span      21763 days (59.58 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46788  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:15:21  

Additional Information
 Jupiter MOID = 2.05858 au 
 T_jup = 3.283 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.760552851927912E-15 -4.817879153368071E-15 -5.958313613924563E-13 2.705107147799204E-14 -2.090198087083296E-13 -6.455522796798881E-15
q -4.817879153368071E-15 1.325757923563657E-14 1.516273942809747E-12 -7.479880258270544E-14 5.442255532015871E-13 1.814304028095329E-14
tp -5.958313613924563E-13 1.516273942809747E-12 2.025731327897217E-9 -1.802574472114853E-11 5.717062202959155E-10 1.770651458338095E-12
node 2.705107147799204E-14 -7.479880258270544E-14 -1.802574472114853E-11 6.452400587987509E-10 -6.411618998678855E-10 -1.349603553276698E-12
peri -2.090198087083296E-13 5.442255532015871E-13 5.717062202959155E-10 -6.411618998678855E-10 8.000213741726084E-10 1.74352969408501E-12
i -6.455522796798881E-15 1.814304028095329E-14 1.770651458338095E-12 -1.349603553276698E-12 1.74352969408501E-12 3.114119952106073E-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 15.1   n/a MPO502792  
diameter diameter 2.230 km 0.355 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.389   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117868 (2147 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2147 P-L = 2001 SP107 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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