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7693 Hoshitakuhai (1982 WE)
Classification: Main-belt Asteroid          SPK-ID: 2007693
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1671887549171052 1.6613e-08  
a 2.622594977772446 8.1459e-09 au
q 2.184126588786818 4.6311e-08 au
i 13.79280833681038 5.0694e-07 deg
node 55.44361114212838 3.5638e-06 deg
peri 33.26948196651853 6.358e-06 deg
M 323.0521509161402 6.6443e-06 deg
tp 2459359.714246179199
(2021-May-25.21424618)
2.8862e-05 TDB
period 1551.2981146594
4.25
7.2276e-06
1.979e-08
d
yr
n .232063712704918 1.0812e-09 deg/d
Q 3.061063366758074 9.5078e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2234  
   data-arc span      14030 days (38.41 yr)  
   first obs. used      1982-10-21  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42267  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:35:07  

Additional Information
 Earth MOID = 1.21182 au 
 Jupiter MOID = 2.25868 au 
 T_jup = 3.344 
[ 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 13.36   n/a E2021B10  
diameter diameter 5.835 km 0.303 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.05456 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 0.272   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7693 Hoshitakuhai           Discovered 1982 Nov. 20 by T. Seki at Geisei.
"Hoshitakuhai" ("Home delivery of the starry skies") is an activity of the Kakogawa Space Science Association that brings the wonders of the stars to the public. Since 1990 it has offered more than 700 viewing nights at various locations.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-05-14Last Updated: 2014-05-15
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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