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JPL Small-Body Database Browser
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39378 (2101 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2039378
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1036919655378789 5.2401e-08  
a 2.696932082127254 1.4877e-08 au
q 2.417281893609315 1.383e-07 au
i 5.013528655308265 5.6409e-06 deg
node 215.9723126285197 5.059e-05 deg
peri 124.1053356273999 5.6315e-05 deg
M 191.992010799049 2.7667e-05 deg
tp 2459755.472051187088
(2022-Jun-24.97205119)
0.00012725 TDB
period 1617.720322229851
4.43
1.3386e-05
3.665e-08
d
yr
n .2225353758947524 1.8414e-09 deg/d
Q 2.976582270645193 1.642e-08 au
  Orbit Determination Parameters
   # obs. used (total)      805  
   data-arc span      21755 days (59.56 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52364  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:42:49  

Additional Information
 Earth MOID = 1.41336 au 
 Jupiter MOID = 2.38257 au 
 T_jup = 3.356 
[ 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 15.2   n/a MPO417088  
diameter diameter 5.779 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39378 (2101 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

[ show close-approach data ]
Alternate Designations
 2101 P-L = 2000 SA148 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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