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JPL Small-Body Database Browser
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9060 Toyokawa (1992 RM)
Classification: Main-belt Asteroid          SPK-ID: 2009060
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1938789615026174 3.7681e-08  
a 2.200937666291209 5.3914e-09 au
q 1.774222157218676 8.3419e-08 au
i 2.526390200392767 4.2808e-06 deg
node 5.246079746587617 7.1237e-05 deg
peri 354.1741665747641 7.1732e-05 deg
M 50.9616996948676 8.1574e-06 deg
tp 2458431.669290813326
(2018-Nov-09.16929081)
2.6928e-05 TDB
period 1192.641840266637
3.27
4.3823e-06
1.2e-08
d
yr
n .3018508892154205 1.1091e-09 deg/d
Q 2.627653175363744 6.4367e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2089  
   data-arc span      14380 days (39.37 yr)  
   first obs. used      1979-09-23  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49282  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:59:33  

Additional Information
 Earth MOID = .769875 au 
 Jupiter MOID = 2.81728 au 
 T_jup = 3.639 
[ 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 14.3   n/a MPO452298  
diameter diameter 3.562 km 0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.6804 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Odden, C.E.; Hirschfield, L.; Driscoll, A.; Brown, E.; et al. (2016) Minor Planet Bull. 43, 218-219.]
geometric albedo albedo 0.319   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9060 Toyokawa           Discovered 1992 Sept. 4 by S. Otomo at Kiyosato.
Hideji Toyokawa (1926-1995) is a curator of the Gotoh Planetarium and Astronomical Museum in Tokyo, where he worked for 29 years since 1957. He maintained planetarium equipment and exhibition facilities. The name was suggested by O. Muramatsu.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1992 RM = 1979 SE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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