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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2957969576793599 3.437e-08  
a 2.586080123117176 8.6422e-09 au
q 1.821125490384051 9.084e-08 au
i 4.335821318519146 3.4806e-06 deg
node 129.3604417502478 5.7981e-05 deg
peri 152.2470407995707 5.8258e-05 deg
M 156.7108284619679 6.6525e-06 deg
tp 2458735.261857784112
(2019-Sep-08.76185778)
2.7191e-05 TDB
period 1519.012652373866
4.16
7.6144e-06
2.085e-08
d
yr
n .2369960509791693 1.188e-09 deg/d
Q 3.351034755850302 1.1199e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1324  
   data-arc span      14008 days (38.35 yr)  
   first obs. used      1982-09-24  
   last obs. used      2021-01-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53513  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:38:53  

Additional Information
 Earth MOID = .805789 au 
 Jupiter MOID = 1.82179 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 14.86   n/a MPCxxxxx  
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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