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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1468997333270467 2.0195e-08  
a 2.441523552413443 6.5605e-09 au
q 2.082864393652204 4.9448e-08 au
i 5.480477435705766 9.8845e-07 deg
node 222.7664986996413 1.0542e-05 deg
peri 125.4279203257598 1.0044e-05 deg
M 40.02329146666859 4.0526e-06 deg
tp 2459045.582633769710
(2020-Jul-15.08263377)
1.5587e-05 TDB
period 1393.444911679738
3.82
5.6164e-06
1.538e-08
d
yr
n .2583525168325712 1.0413e-09 deg/d
Q 2.800182711174682 7.5242e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2538  
   data-arc span      20948 days (57.35 yr)  
   first obs. used      1963-11-12  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43796  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:32:50  

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 13.88   n/a MPCxxxxx  
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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