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39386 (4039 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2039386
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2275960720024175 3.5289e-08  
a 2.348118925286213 7.877e-09 au
q 1.813696281296533 8.2823e-08 au
i 1.662865677133849 4.4757e-06 deg
node 208.302395290192 0.00011983 deg
peri 112.6115811223046 0.00012023 deg
M 236.9755750732818 1.0876e-05 deg
tp 2459449.625178705300
(2021-Aug-23.12517871)
4.0922e-05 TDB
period 1314.251738467534
3.60
6.6132e-06
1.811e-08
d
yr
n .2739201246328753 1.3783e-09 deg/d
Q 2.882541569275893 9.6697e-09 au
  Orbit Determination Parameters
   # obs. used (total)      783  
   data-arc span      21756 days (59.56 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54113  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:42:49  

Additional Information
 Earth MOID = .801792 au 
 Jupiter MOID = 2.44279 au 
 T_jup = 3.524 
[ 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 15.9   n/a MPO452716  

39386 (4039 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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1952-Feb-08 21:25 < 00:01 Amphi 0.0240221626204358 0.0240190135719231 0.0240253117087087 5.14375569483814 5.14375564831376 2434051.392046612 0.432481462885998 165.140246188352 48.6547675345415 -18.9514410477642 31595.6204268894 T 22 CATAB v2.0f-lin.ifort 2020-May-20 08:42:59 2020-May-20 08:43
2026-Aug-13 07:01 < 00:01 Europ 0.0454318326071314 0.0454308290770323 0.0454328361382195 4.24413760714923 4.24413755202761 2461265.792058645 0.907948453330333 85.2247888248397 49.4225164342541 -83.6705262826645 136879.721994823 T 22 CATAB v2.0f-lin.ifort 2020-May-20 08:42:59 2020-May-20 08:43

Alternate Designations
 4039 P-L = 1996 SH2 = 1999 JN31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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