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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1468997335114876 2.0208e-08  
a 2.441523552422875 6.5619e-09 au
q 2.082864393209934 4.9484e-08 au
i 5.480477435505631 9.8845e-07 deg
node 222.7664987349766 1.0543e-05 deg
peri 125.4279203066706 1.0044e-05 deg
M 40.02329146823432 4.0527e-06 deg
tp 2459045.582633762752
(2020-Jul-15.08263376)
1.5587e-05 TDB
period 1393.444911687812
3.82
5.6176e-06
1.538e-08
d
yr
n .2583525168310741 1.0415e-09 deg/d
Q 2.800182711635816 7.5258e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2524  
   data-arc span      20938 days (57.33 yr)  
   first obs. used      1963-11-12  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43857  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:11:44  

Additional Information
 Earth MOID = 1.08075 au 
 Jupiter MOID = 2.63905 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 13.87   n/a E2020-QM5  
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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