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4774 Hobetsu (1991 CV1)
Classification: Main-belt Asteroid          SPK-ID: 2004774
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08576393243372736 3.7787e-08  
a 2.237467628306323 5.6419e-09 au
q 2.045573605809607 8.4359e-08 au
i 3.630355577004014 3.0991e-06 deg
node 285.8072896636447 6.2609e-05 deg
peri 236.8726281242486 6.553e-05 deg
M 333.829629638643 1.8944e-05 deg
tp 2459289.367085228721
(2021-Mar-15.86708523)
6.4325e-05 TDB
period 1222.456932805917
3.35
4.6238e-06
1.266e-08
d
yr
n .2944889020946436 1.1139e-09 deg/d
Q 2.429361650803039 6.1258e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2813  
   data-arc span      20857 days (57.10 yr)  
   first obs. used      1964-02-15  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4137  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:50:40  

Additional Information
 Earth MOID = 1.05601 au 
 Jupiter MOID = 2.55569 au 
 T_jup = 3.630 
[ 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 13.01   n/a MPCxxxxx  
diameter diameter 5.017 km 0.299 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 3.577 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pray, D. (2005) Minor Planet Bull. 32, 8-9.]
[Benishek, V. (2020) Minor Planet Bull. 47, 75-83.]
geometric albedo albedo 0.584   0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4774 Hobetsu (1991 CV1)          Discovered 1991-Feb-14 by Ueda and Kaneda at Kushiro
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1991 CV1 = 1951 GJ1 = 1951 JH = 1964 CJ = 1973 YD4 = 1976 YJ = 1986 XH1 = 1989 TB2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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