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79641 Daniloceirani (1998 SY2)
Classification: Main-belt Asteroid          SPK-ID: 2079641
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2580959065872246 5.3732e-08  
a 2.287194953263464 1.0627e-08 au
q 1.696879298259206 1.1966e-07 au
i .8943327624603059 6.8776e-06 deg
node 211.9922787615201 0.00026328 deg
peri 101.4005190358164 0.00026418 deg
M 129.6877438238663 2.8499e-05 deg
tp 2458545.355145707533
(2019-Mar-02.85514571)
9.7837e-05 TDB
period 1263.435870762173
3.46
8.8057e-06
2.411e-08
d
yr
n .2849372954583191 1.9859e-09 deg/d
Q 2.877510608267723 1.337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      424  
   data-arc span      9421 days (25.79 yr)  
   first obs. used      1994-04-13  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65295  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:42:49  

Additional Information
 Earth MOID = .683182 au 
 Jupiter MOID = 2.41808 au 
 T_jup = 3.556 
[ 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 16.7   n/a MPO250891  

79641 Daniloceirani           Discovered 1998 Sept. 19 by F. Mallia and G. Masi at Campo Catino.
Danilo Ceirani (b. 1964) is an industrial chemist and Italian history writer, who has published several books on Roman history, Napoleon and World War II.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-09-09Last Updated: 2014-11-10

[ show close-approach data ]
Alternate Designations
 1998 SY2 = 2001 KX24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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