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181684 (6330 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2181684
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1251605956444863 5.9014e-08  
a 2.582162144251662 1.6842e-08 au
q 2.258977192226479 1.5548e-07 au
i 8.291523190288288 6.9649e-06 deg
node 345.9056546535615 2.6276e-05 deg
peri 49.69027548762537 4.6975e-05 deg
M 158.8130075088666 3.5472e-05 deg
tp 2458531.914026479201
(2019-Feb-17.41402648)
0.00014664 TDB
period 1515.561944471393
4.15
1.4828e-05
4.06e-08
d
yr
n .2375356555456155 2.3239e-09 deg/d
Q 2.905347096276844 1.895e-08 au
  Orbit Determination Parameters
   # obs. used (total)      401  
   data-arc span      21729 days (59.49 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48582  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:36  

Additional Information
 Earth MOID = 1.27338 au 
 Jupiter MOID = 2.5623 au 
 T_jup = 3.398 
[ 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 16.41   n/a E2021B55  

181684 (6330 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 ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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