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JPL Small-Body Database Browser
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7308 Hattori (1995 BQ4)
Classification: Main-belt Asteroid          SPK-ID: 2007308
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04138230718933117 3.7388e-08  
a 3.064883732011151 2.0121e-08 au
q 2.938051771913482 1.1299e-07 au
i 8.131829570176269 4.1747e-06 deg
node 280.8192710633211 4.1094e-05 deg
peri 332.0510502345741 8.4005e-05 deg
M 62.58265239580412 7.3739e-05 deg
tp 2458259.800969557955
(2018-May-21.30096956)
0.0004014 TDB
period 1959.834654872496
5.37
1.93e-05
5.284e-08
d
yr
n .1836889653445898 1.8089e-09 deg/d
Q 3.19171569210882 2.0954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1706  
   data-arc span      13481 days (36.91 yr)  
   first obs. used      1982-10-21  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5101  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 00:57:31  

Additional Information
 Earth MOID = 1.92526 au 
 Jupiter MOID = 1.88917 au 
 T_jup = 3.216 
[ show covariance matrix ]

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 12.6   n/a MPO332888  
diameter diameter 10.099 km 0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.190   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7308 Hattori (1995 BQ4)          Discovered 1995-Jan-31 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1995 BQ4 = 1982 UM8 = 1987 SG30 = 1992 QY1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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