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7572 Znokai (1989 SF)
Classification: Main-belt Asteroid          SPK-ID: 2007572
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08827134707406284 2.4923e-08  
a 2.158751538340303 6.0706e-09 au
q 1.968195632052799 5.2386e-08 au
i 3.749020999582431 4.511e-06 deg
node 325.5914191157125 4.0782e-05 deg
peri 92.79273940831266 4.9446e-05 deg
M 203.2008828346616 2.7794e-05 deg
tp 2459505.095681444330
(2021-Oct-17.59568144)
9.0012e-05 TDB
period 1158.517015937094
3.17
4.8868e-06
1.338e-08
d
yr
n .3107420910074467 1.3108e-09 deg/d
Q 2.349307444627807 6.6065e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2086  
   data-arc span      11275 days (30.87 yr)  
   first obs. used      1989-09-23  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45528  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:51:39  

Additional Information
 Earth MOID = .984503 au 
 Jupiter MOID = 2.87284 au 
 T_jup = 3.691 
[ 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 13.7   n/a MPO473870  
diameter diameter 4.722 km 0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.288   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7572 Znokai (1989 SF)          Discovered 1989-Sep-23 by Endate, K., Watanabe, K. at Kitami
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 SF = 1962 CT = 1992 QJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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