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9397 Lombardi (1994 RJ)
Classification: Main-belt Asteroid          SPK-ID: 2009397
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
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Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

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Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1476804936791615 6.2922e-08  
a 2.520490184111062 1.0097e-08 au
q 2.14826294940806 1.5843e-07 au
i 3.172879411996838 4.3246e-06 deg
node 216.0809528967808 0.00010884 deg
peri 106.4100174926652 0.00010955 deg
M 163.6772433469156 1.2743e-05 deg
tp 2458335.974357816500
(2018-Aug-05.47435782)
5.078e-05 TDB
period 1461.591277408132
4.00
8.7828e-06
2.405e-08
d
yr
n .2463068886387957 1.4801e-09 deg/d
Q 2.892717418814064 1.1588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      844  
   data-arc span      9814 days (26.87 yr)  
   first obs. used      1993-03-21  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54052  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:18:19  

Additional Information
 Earth MOID = 1.13852 au 
 Jupiter MOID = 2.41593 au 
 T_jup = 3.439 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO452302  
diameter diameter 1.927 km 0.531 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.396   0.163 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9397 Lombardi           Discovered 1994 Sept. 6 at Santa Lucia Stroncone.
Giuseppe Lombardi (b. 1939) is an Italian amateur astronomer at the CCAF observatory in Farra d´Isonzo. Now retired, he spends most of his sleepless nights at the observatory, where he shows the beauties of the sky to visitors and participates in almost all of the discoveries at this site.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19991123/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1994 RJ = 1993 FG67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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