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JPL Small-Body Database Browser
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39383 (2765 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2039383
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1878407391920205 4.2189e-08  
a 2.694859923874863 1.3712e-08 au
q 2.188655443755257 1.1437e-07 au
i 1.209532150171346 5.5562e-06 deg
node 14.41121144864599 0.00024356 deg
peri 26.61445430193295 0.00024413 deg
M 150.8205604043235 1.7685e-05 deg
tp 2458323.543488251051
(2018-Jul-24.04348825)
7.6857e-05 TDB
period 1615.85624384562
4.42
1.2333e-05
3.377e-08
d
yr
n .2227920963706687 1.7004e-09 deg/d
Q 3.201064403994469 1.6287e-08 au
  Orbit Determination Parameters
   # obs. used (total)      579  
   data-arc span      21654 days (59.29 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57075  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:48:40  

Additional Information
 Earth MOID = 1.19701 au 
 Jupiter MOID = 2.21312 au 
 T_jup = 3.344 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456426.5 (2013-May-14.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1853570777302319 4.1965e-08  
q 2.19698836348285 1.1339e-07 au
tp 2456707.226213103513
(2014-Feb-18.72621310)
7.3564e-05 TDB
node 14.46478991646815 0.00024354 deg
peri 26.86976253356369 0.00024413 deg
i 1.210107967462829 5.549e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      579  
   data-arc span      21654 days (59.29 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57075  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:48:40  

Additional Information
 Jupiter MOID = 2.21312 au 
 T_jup = 3.344 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.76109115838142E-15 -4.735562604046199E-15 -7.563364418863333E-13 9.648769502730973E-15 -2.136683856802411E-13 1.000587632173218E-16
q -4.735562604046199E-15 1.285812811995336E-14 2.279527787063966E-12 -2.579274304646299E-14 6.20767011152506E-13 -2.925643685678464E-16
tp -7.563364418863333E-13 2.279527787063966E-12 5.41166576757124E-9 -2.789901734282973E-11 1.276723448745942E-9 -4.492840485262591E-13
node 9.648769502730973E-15 -2.579274304646299E-14 -2.789901734282973E-11 5.931268576415382E-8 -5.930548315718073E-8 -3.683977095987396E-10
peri -2.136683856802411E-13 6.20767011152506E-13 1.276723448745942E-9 -5.930548315718073E-8 5.960140847812895E-8 3.682094535152628E-10
i 1.000587632173218E-16 -2.925643685678464E-16 -4.492840485262591E-13 -3.683977095987396E-10 3.682094535152628E-10 3.07913281500418E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO468232  

39383 (2765 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2765 P-L = 1978 WS1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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