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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2962941897978136 4.4432e-08  
a 2.585823554393582 1.0866e-08 au
q 1.819659059384433 1.193e-07 au
i 4.335096064632345 4.2477e-06 deg
node 129.3709022225605 5.8648e-05 deg
peri 152.2348152682112 5.9103e-05 deg
M 328.0210649938987 6.5606e-06 deg
tp 2458735.414383501003
(2019-Sep-08.91438350)
2.7757e-05 TDB
period 1518.786602840102
4.16
9.5736e-06
2.621e-08
d
yr
n .2370313244314947 1.4941e-09 deg/d
Q 3.35198804940273 1.4086e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1158  
   data-arc span      13485 days (36.92 yr)  
   first obs. used      1982-09-24  
   last obs. used      2019-08-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53585  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:10:37  

Additional Information
 Earth MOID = .80399 au 
 Jupiter MOID = 1.82099 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 14.8   n/a MPO293519  
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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