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9995 Alouette (4805 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2009995
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1604830421317643 4.9828e-08  
a 2.39059878429477 1.1794e-08 au
q 2.006948218874648 1.1793e-07 au
i 2.313038926387512 5.9574e-06 deg
node 20.87784704409346 0.00012493 deg
peri 198.1894782891173 0.00012619 deg
M 175.7387533798759 2.0075e-05 deg
tp 2456941.442192969023
(2014-Oct-10.94219297)
7.3443e-05 JED
period 1350.076781404556
3.70
9.9905e-06
2.735e-08
d
yr
n .266651500832029 1.9732e-09 deg/d
Q 2.774249349714892 1.3686e-08 au
  Orbit Determination Parameters
   # obs. used (total)      854  
   data-arc span      23709 days (64.91 yr)  
   first obs. used      1950-12-09  
   last obs. used      2015-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55654  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 16:04:22  

Additional Information
 Earth MOID = .999117 au 
 Jupiter MOID = 2.19904 au 
 T_jup = 3.514 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0 mag n/a MPO302127  

9995 Alouette           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
The first Canadian satellite Alouette-1 was launched on 1962 Sept. 29. It was engaged in research and exploration of the upper atmosphere, especially the ionosphere. During its six-year lifespan it returned the first useful data on the ionosphere. The citation was prepared by W. Fröger.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001111/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 4805 P-L = 1981 EP22 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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