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181680 (4290 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2181680
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 .1612803969657109 4.8985e-08  
a 2.315097231086023 8.8771e-09 au
q 1.94171743064225 1.1319e-07 au
i 3.716300994177755 5.1483e-06 deg
node 341.1977530066432 7.5569e-05 deg
peri 356.8965341164661 7.7276e-05 deg
M 54.57646710890244 1.7406e-05 deg
tp 2459005.445848348613
(2020-Jun-04.94584835)
6.2143e-05 TDB
period 1286.625872180087
3.52
7.4003e-06
2.026e-08
d
yr
n .2798016173808228 1.6093e-09 deg/d
Q 2.688477031529795 1.0309e-08 au
  Orbit Determination Parameters
   # obs. used (total)      373  
   data-arc span      22019 days (60.28 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51068  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:35  

Additional Information
 Earth MOID = .930721 au 
 Jupiter MOID = 2.68236 au 
 T_jup = 3.561 
[ 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 17.34   n/a MPCxxxxx  

181680 (4290 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 4290 P-L = 2002 NL41 = 2006 VC37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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