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74786 (1999 SY)
Classification: Main-belt Asteroid          SPK-ID: 2074786
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1833223160902625 3.6509e-08  
a 2.385422414325025 8.6957e-09 au
q 1.948121252477335 8.6456e-08 au
i 2.454272000195518 4.0986e-06 deg
node 166.2193194562722 9.8986e-05 deg
peri 288.5324961380099 9.9769e-05 deg
M 154.499409491522 1.1348e-05 deg
tp 2458422.975126633506
(2018-Oct-31.47512663)
4.18e-05 TDB
period 1345.694168645653
3.68
7.3583e-06
2.015e-08
d
yr
n .2675199227193761 1.4628e-09 deg/d
Q 2.822723576172714 1.029e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1041  
   data-arc span      15168 days (41.53 yr)  
   first obs. used      1977-10-17  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52214  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:01:05  

Additional Information
 Earth MOID = .966529 au 
 Jupiter MOID = 2.35859 au 
 T_jup = 3.511 
[ 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 15.9   n/a MPO468696  

74786 (1999 SY)          Discovered 1999-Sep-16 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 SY = 2001 FS159 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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