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4670 Yoshinogawa (1987 YJ)
Classification: Main-belt Asteroid          SPK-ID: 2004670
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09305467354930276 1.6621e-08  
a 2.240267427383873 6.0189e-09 au
q 2.031800073265531 3.7796e-08 au
i 5.018471674883282 4.1441e-07 deg
node 314.8298055458021 1.0511e-05 deg
peri 181.6316382856786 1.1916e-05 deg
M 272.5091160475865 6.3823e-06 deg
tp 2459498.151809561202
(2021-Oct-10.65180956)
2.2438e-05 TDB
period 1224.75218675713
3.35
4.9358e-06
1.351e-08
d
yr
n .2939370134567382 1.1846e-09 deg/d
Q 2.448734781502216 6.579e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2667  
   data-arc span      14710 days (40.27 yr)  
   first obs. used      1980-12-10  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39011  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:46:36  

Additional Information
 Earth MOID = 1.04541 au 
 Jupiter MOID = 2.56918 au 
 T_jup = 3.624 
[ 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 13.90   n/a MPCxxxxx  
diameter diameter 4.394 km 0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 15.9935 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.303   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4670 Yoshinogawa (1987 YJ)          Discovered 1987-Dec-19 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1987 YJ = 1980 XX1 = 1986 PF2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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