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187961 (2001 PL2)
Classification: Main-belt Asteroid          SPK-ID: 2187961
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1402307460620069 4.3338e-08  
a 2.41203161253584 8.6471e-09 au
q 2.073790619984793 1.0407e-07 au
i 5.202568433682906 3.1583e-06 deg
node 270.4587603367355 6.5066e-05 deg
peri 52.34375416235491 6.7632e-05 deg
M 60.38357004708975 1.8389e-05 deg
tp 2458970.996556867234
(2020-May-01.49655687)
6.9802e-05 TDB
period 1368.273513198444
3.75
7.3579e-06
2.014e-08
d
yr
n .2631052903731744 1.4148e-09 deg/d
Q 2.750272605086886 9.8597e-09 au
  Orbit Determination Parameters
   # obs. used (total)      631  
   data-arc span      22023 days (60.30 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53083  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:31  

Additional Information
 Earth MOID = 1.064 au 
 Jupiter MOID = 2.54167 au 
 T_jup = 3.500 
[ 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 16.36   n/a E2021B55  

187961 (2001 PL2)          Discovered 2001-Aug-03 by NEAT at Haleakala
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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