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11838 (1986 PJ1)
Classification: Main-belt Asteroid          SPK-ID: 2011838
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2960795327838059 4.3576e-08  
a 2.585213953338427 1.0624e-08 au
q 1.81978501388781 1.1678e-07 au
i 4.335784902946254 4.2104e-06 deg
node 129.3629908933957 5.8549e-05 deg
peri 152.1876605375145 5.8992e-05 deg
M 62.88688288255054 6.6259e-06 deg
tp 2458735.283382661044
(2019-Sep-08.78338266)
2.7712e-05 TDB
period 1518.249559615502
4.16
9.3593e-06
2.562e-08
d
yr
n .2371151683990413 1.4617e-09 deg/d
Q 3.350642892789044 1.377e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1169  
   data-arc span      13825 days (37.85 yr)  
   first obs. used      1982-09-24  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53804  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:28:14  

Additional Information
 Earth MOID = .80471 au 
 Jupiter MOID = 1.82364 au 
 T_jup = 3.355 
[ 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 14.9   n/a MPO492885  
diameter diameter 3.167 km 0.548 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.212   0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11838 (1986 PJ1)          Discovered 1986-Aug-01 by Helin, E. F. at Palomar
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1986 PJ1 = 1982 ST3 = 1998 HX40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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