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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0216715788707425 5.1862e-08  
a 2.765551393346076 2.4972e-08 au
q 2.705617528204085 1.3452e-07 au
i 4.716505765703383 6.1843e-06 deg
node 29.82565806089693 5.6998e-05 deg
peri 204.9550933598768 0.00016684 deg
M 53.88578627056724 0.00015568 deg
tp 2458349.055146728349
(2018-Aug-18.55514673)
0.00072788 TDB
period 1679.852024860163
4.60
2.2753e-05
6.229e-08
d
yr
n .2143045903284057 2.9027e-09 deg/d
Q 2.825485258488067 2.5514e-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 = 1.69494 au 
 Jupiter MOID = 2.1434 au 
 T_jup = 3.334 
[ 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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