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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2167561674441989 3.5855e-08  
a 2.384093366229584 1.0323e-08 au
q 1.86732642533652 8.7157e-08 au
i 9.304659698630129 5.6899e-06 deg
node 345.339569420274 2.1403e-05 deg
peri 297.428358816569 2.4447e-05 deg
M 328.4117401845251 1.3237e-05 deg
tp 2459118.479490555663
(2020-Sep-25.97949056)
4.9769e-05 TDB
period 1344.569686590703
3.68
8.7328e-06
2.391e-08
d
yr
n .2677436532968535 1.739e-09 deg/d
Q 2.900860307122647 1.2561e-08 au
  Orbit Determination Parameters
   # obs. used (total)      941  
   data-arc span      10492 days (28.73 yr)  
   first obs. used      1991-08-07  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56414  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:33:50  

Additional Information
 Earth MOID = .872817 au 
 Jupiter MOID = 2.34019 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 15.2   n/a MPO468329  

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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