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187951 (2001 NL)
Classification: Main-belt Asteroid          SPK-ID: 2187951
[ 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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2365118492367508 4.4593e-08  
a 2.341230325812124 1.3505e-08 au
q 1.787501611965138 1.0588e-07 au
i 8.158671127498657 6.0432e-06 deg
node 302.2034210735882 3.8131e-05 deg
peri 334.3673453147683 4.0246e-05 deg
M 145.1561957937211 1.4689e-05 deg
tp 2458672.908590868693
(2019-Jul-08.40859087)		 5.1136e-05 TDB
period 1308.472616333793
3.58		 1.1322e-05
3.1e-08		 d
yr
n .2751299457902934 2.3806e-09 deg/d
Q 2.89495903965911 1.67e-08 au
   Orbit Determination Parameters
   # obs. used (total)      319  
   data-arc span      7119 days (19.49 yr)  
   first obs. used      2001-07-09  
   last obs. used      2021-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58434  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:57:38  

Additional Information
 Earth MOID = .773149 au 
 Jupiter MOID = 2.26716 au 
 T_jup = 3.513 
[ 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 16.4   n/a MPO433238  

187951 (2001 NL)          Discovered 2001-Jul-09 by NEAT at Palomar
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

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Alternate Designations
 2001 NL = 2005 QU170 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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