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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2169394810253623 3.3546e-08  
a 2.38460508733556 9.2203e-09 au
q 1.867290097238545 8.3136e-08 au
i 9.305579760317668 4.5412e-06 deg
node 345.3286373138752 2.1033e-05 deg
peri 297.3870436805524 2.343e-05 deg
M 21.98669676459102 1.011e-05 deg
tp 2459118.355098707682
(2020-Sep-25.85509871)
3.7673e-05 TDB
period 1345.002606888166
3.68
7.8009e-06
2.136e-08
d
yr
n .2676574737895161 1.5524e-09 deg/d
Q 2.901920077432575 1.1221e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1086  
   data-arc span      10608 days (29.04 yr)  
   first obs. used      1991-08-07  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54664  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:50:05  

Additional Information
 Earth MOID = .870949 au 
 Jupiter MOID = 2.33839 au 
 T_jup = 3.486 
[ 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

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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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