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41206 Sciannameo (1999 WG9)
Classification: Main-belt Asteroid          SPK-ID: 2041206
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1854334498487933 4.27e-08  
a 2.627036509610197 1.4723e-08 au
q 2.139896066754446 1.1419e-07 au
i 14.17012724766387 4.954e-06 deg
node 104.4691871945857 1.917e-05 deg
peri 264.3523860823634 2.3292e-05 deg
M 330.1430928242248 1.4756e-05 deg
tp 2459129.485207532508
(2020-Oct-06.98520753)
6.4092e-05 TDB
period 1555.240616127116
4.26
1.3075e-05
3.58e-08
d
yr
n .2314754361910104 1.946e-09 deg/d
Q 3.114176952465948 1.7454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      848  
   data-arc span      9518 days (26.06 yr)  
   first obs. used      1994-07-11  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53547  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 03:46:03  

Additional Information
 Earth MOID = 1.19319 au 
 Jupiter MOID = 2.49894 au 
 T_jup = 3.335 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO395391  
diameter diameter 3.935 km 1.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.198   0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

41206 Sciannameo           Discovered 1999 Nov. 27 at Polino Pianomonte.
Francesco Sciannameo (b. 1941) is a professor of general surgery and head physician of the general surgery facility of the Terni hospital. As an amateur astronomer, he takes an active part in the life of the Polino Observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021120/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1999 WG9 = 1994 NX4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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