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3867 Shiretoko (1988 HG)
Classification: Main-belt Asteroid          SPK-ID: 2003867
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1072047938343171 1.5582e-08  
a 2.350327076310275 6.5323e-09 au
q 2.098360746651219 3.724e-08 au
i 6.276193427120057 6.0422e-07 deg
node 79.9235310245674 2.9888e-06 deg
peri 32.77659086760612 4.4918e-06 deg
M 104.8245567591282 4.3012e-06 deg
tp 2458817.277132251443
(2019-Nov-29.77713225)
1.5461e-05 TDB
period 1316.106040939372
3.60
5.4868e-06
1.502e-08
d
yr
n .2735341901045068 1.1404e-09 deg/d
Q 2.602293405969331 7.2326e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3109  
   data-arc span      29160 days (79.84 yr)  
   first obs. used      1941-03-19  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41774  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:40:00  

Additional Information
 Earth MOID = 1.11794 au 
 Jupiter MOID = 2.49139 au 
 T_jup = 3.542 
[ 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 13.19   n/a E2021B10  
diameter diameter 5.345 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 28.035 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:
[Michalik, D.; Ditteon, R. (2016) Minor Planet Bull. 43, 202-203.]
geometric albedo albedo 0.324   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3867 Shiretoko (1988 HG)          Discovered 1988-Apr-16 by Yanai, M. and Watanabe, K. at Kitami
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1988 HG = 1941 EB = 1973 AS3 = 1979 XM = 1984 DJ1 = 1986 VA6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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