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4311 Zguridi (1978 SY6)
Classification: Main-belt Asteroid          SPK-ID: 2004311
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1477665640926079 3.8494e-08  
a 2.441843719800343 8.645e-09 au
q 2.081020863274333 9.6806e-08 au
i 5.483204159424851 3.8103e-06 deg
node 222.8026498290312 3.6713e-05 deg
peri 125.4828738664502 3.8323e-05 deg
M 245.0186209781864 1.1767e-05 deg
tp 2459045.643705857734
(2020-Jul-15.14370586)
4.6274e-05 TDB
period 1393.719013218498
3.82
7.4014e-06
2.026e-08
d
yr
n .2583017068617414 1.3717e-09 deg/d
Q 2.802666576326352 9.9224e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1852  
   data-arc span      20399 days (55.85 yr)  
   first obs. used      1963-11-12  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47483  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 00:45:32  

Additional Information
 Earth MOID = 1.07977 au 
 Jupiter MOID = 2.63423 au 
 T_jup = 3.480 
[ 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 13.9   n/a MPO395038  
diameter diameter 3.953 km 0.325 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.410   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B V   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4311 Zguridi (1978 SY6)          Discovered 1978-Sep-26 by Zhuravleva, L. V. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1978 SY6 = 1982 UK2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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