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136628 (1994 PL21)
Classification: Outer Main-belt Asteroid          SPK-ID: 2136628
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1516123512746885 4.7762e-08  
a 3.205608683733115 2.5594e-08 au
q 2.719598813925778 1.5846e-07 au
i 1.088001090612165 4.9562e-06 deg
node 129.0469593641767 0.00026366 deg
peri 214.0992859001744 0.00026421 deg
M 98.84166131367068 1.6442e-05 deg
tp 2458024.925266236101
(2017-Sep-28.42526624)
9.3496e-05 TDB
period 2096.3518965696
5.74
2.5106e-05
6.874e-08
d
yr
n .1717268940339129 2.0566e-09 deg/d
Q 3.691618553540452 2.9474e-08 au
  Orbit Determination Parameters
   # obs. used (total)      578  
   data-arc span      15059 days (41.23 yr)  
   first obs. used      1977-10-16  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55778  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:36:45  

Additional Information
 Earth MOID = 1.71091 au 
 Jupiter MOID = 1.70893 au 
 T_jup = 3.175 
[ 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 15.0   n/a MPO453849  
diameter diameter 5.964 km 0.335 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136628 (1994 PL21)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1994 PL21 = 3067 T-3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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