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173774 (2001 SY11)
Classification: Main-belt Asteroid          SPK-ID: 2173774
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02141757187118549 5.2485e-08  
a 2.764391810900575 2.4757e-08 au
q 2.705185250610495 1.358e-07 au
i 4.716675742531138 6.185e-06 deg
node 29.81142042372232 5.7005e-05 deg
peri 203.8146694597934 0.00016714 deg
M 140.8226364365251 0.00015554 deg
tp 2458343.798824720330
(2018-Aug-13.29882472)
0.00072903 TDB
period 1678.795604762324
4.60
2.2552e-05
6.174e-08
d
yr
n .2144394463380592 2.8807e-09 deg/d
Q 2.823598371190654 2.5288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      420  
   data-arc span      6551 days (17.94 yr)  
   first obs. used      2001-09-16  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58202  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:46:15  

Additional Information
 Earth MOID = 1.69473 au 
 Jupiter MOID = 2.14342 au 
 T_jup = 3.335 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO439994  
diameter diameter 5.093 km 0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173774 (2001 SY11)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 2001 SY11 = 2004 EL42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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