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7504 Kawakita (1997 AF1)
Classification: Main-belt Asteroid          SPK-ID: 2007504
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955872454684758 3.2292e-08  
a 3.173968994162398 1.4236e-08 au
q 2.553181141391825 1.0035e-07 au
i 1.239634064160551 3.7191e-06 deg
node 51.28246055540697 0.0001793 deg
peri 81.17250415520959 0.00017965 deg
M 78.41718834814745 1.0047e-05 deg
tp 2458750.604952360699
(2019-Sep-24.10495236)
5.7145e-05 TDB
period 2065.391791798088
5.65
1.3895e-05
3.804e-08
d
yr
n .1743010703487843 1.1727e-09 deg/d
Q 3.79475684693297 1.702e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1895  
   data-arc span      15234 days (41.71 yr)  
   first obs. used      1978-10-27  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .483  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 19:46:57  

Additional Information
 Earth MOID = 1.56793 au 
 Jupiter MOID = 1.25713 au 
 T_jup = 3.171 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456964.5 (2014-Nov-03.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1972368711385282 3.2268e-08  
q 2.547075936024295 1.0045e-07 au
tp 2456684.509897698318
(2014-Jan-27.00989770)
5.6297e-05 TDB
node 51.283256567403 0.00017923 deg
peri 81.18587210795971 0.00017957 deg
i 1.24023695379075 3.7204e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1895  
   data-arc span      15234 days (41.71 yr)  
   first obs. used      1978-10-27  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .483  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 19:46:57  

Additional Information
 Jupiter MOID = 1.25713 au 
 T_jup = 3.171 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.04119961001076E-15 -3.221594585071564E-15 5.003271433216413E-13 1.899530267781429E-16 1.068938754812942E-13 -2.936521606922761E-16
q -3.221594585071564E-15 1.009046050639442E-14 -1.658198172694168E-12 6.174646670964078E-16 -3.489030667128307E-13 9.318074777058319E-16
tp 5.003271433216413E-13 -1.658198172694168E-12 3.169386450426552E-9 -6.43938403402944E-12 6.432185389278793E-10 -2.802688950947525E-13
node 1.899530267781429E-16 6.174646670964078E-16 -6.43938403402944E-12 3.212457508526193E-8 -3.211788492596635E-8 -1.835320767494045E-10
peri 1.068938754812942E-13 -3.489030667128307E-13 6.432185389278793E-10 -3.211788492596635E-8 3.224650239085057E-8 1.83432715487383E-10
i -2.936521606922761E-16 9.318074777058319E-16 -2.802688950947525E-13 -1.835320767494045E-10 1.83432715487383E-10 1.384148655939137E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.59   n/a E2021B10  
diameter diameter 10.304 km 0.223 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7504 Kawakita           Discovered 1997 Jan. 2 by T. Kobayashi at Oizumi.
Hideyo Kawakita (b. 1970) is on the staff at the Gunma Astronomical Observatory. His scientific interests include comets, planets, and formation of our solar system.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1997 AF1 = 1978 UR7 = 1981 JX5 = 1995 TP3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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