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181678 (2667 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2181678
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .217685359673517 6.4002e-08  
a 2.350570875273368 1.209e-08 au
q 1.838886008851391 1.5441e-07 au
i 2.324139277118086 7.5543e-06 deg
node 6.071248005115623 0.00010821 deg
peri 21.9093940721191 0.00010923 deg
M 238.9565617651207 1.6548e-05 deg
tp 2459643.085522471281
(2022-Mar-04.58552247)
6.2982e-05 TDB
period 1316.310825378961
3.60
1.0155e-05
2.78e-08
d
yr
n .2734916351511106 2.11e-09 deg/d
Q 2.862255741695345 1.4722e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      21764 days (59.59 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5333  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:35  

Additional Information
 Earth MOID = .842613 au 
 Jupiter MOID = 2.59109 au 
 T_jup = 3.525 
[ 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 17.21   n/a E2021B55  

181678 (2667 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
 2667 P-L = 2007 TN240 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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