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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .295969455447147 3.4845e-08  
a 2.585609572903357 8.7221e-09 au
q 1.82034811561222 9.2018e-08 au
i 4.335766791388783 3.5982e-06 deg
node 129.3617387450503 5.8347e-05 deg
peri 152.219488137079 5.8629e-05 deg
M 110.2815966190157 6.6725e-06 deg
tp 2458735.296052083825
(2019-Sep-08.79605208)
2.7545e-05 TDB
period 1518.59808330836
4.16
7.684e-06
2.104e-08
d
yr
n .2370607496196213 1.1995e-09 deg/d
Q 3.350871030194494 1.1304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1305  
   data-arc span      13990 days (38.30 yr)  
   first obs. used      1982-09-24  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53495  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:02:43  

Additional Information
 Earth MOID = .803371 au 
 Jupiter MOID = 1.82287 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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