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JPL Small-Body Database Browser
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46569 (1991 SY1)
Classification: Main-belt Asteroid          SPK-ID: 2046569
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2165345295320153 3.8894e-08  
a 2.38426968416655 1.1836e-08 au
q 1.867992969828099 9.2724e-08 au
i 9.303611631755448 6.1011e-06 deg
node 345.3420912166789 2.2003e-05 deg
peri 297.3900534007997 2.5751e-05 deg
M 221.333657974609 1.5773e-05 deg
tp 2459118.464565762247
(2020-Sep-25.96456576)
6.1111e-05 TDB
period 1344.718847781138
3.68
1.0013e-05
2.741e-08
d
yr
n .2677139541801026 1.9934e-09 deg/d
Q 2.900546398505 1.4399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      864  
   data-arc span      10099 days (27.65 yr)  
   first obs. used      1991-08-07  
   last obs. used      2019-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58224  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:38:17  

Additional Information
 Earth MOID = .872886 au 
 Jupiter MOID = 2.33893 au 
 T_jup = 3.487 
[ 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 15.1   n/a MPO432023  

46569 (1991 SY1)          Discovered 1991-Sep-16 by Holt, H. E. at Palomar
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 SY1 = 1991 PS20 = 1999 XA220 = 2001 CM1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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