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3823 Yorii (1988 EC1)
Classification: Main-belt Asteroid          SPK-ID: 2003823
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2475556146918499 1.8423e-08  
a 3.065073891236231 1.0624e-08 au
q 2.306297640015305 5.6953e-08 au
i 5.505823201373135 6.2132e-07 deg
node 112.0098937395511 1.0722e-05 deg
peri 15.33714908214369 1.0739e-05 deg
M 99.05258536105771 3.7613e-06 deg
tp 2458857.209009805472
(2020-Jan-08.70900981)
1.8754e-05 TDB
period 1960.017053187968
5.37
1.0191e-05
2.79e-08
d
yr
n .1836718713311499 9.5496e-10 deg/d
Q 3.823850142457156 1.3254e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2261  
   data-arc span      20289 days (55.55 yr)  
   first obs. used      1966-01-21  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46424  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 09:58:12  

Additional Information
 Earth MOID = 1.32263 au 
 Jupiter MOID = 1.25521 au 
 T_jup = 3.178 
[ 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 13.14   n/a MPO636121  
diameter diameter 12.438 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.669 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2014) Minor Planet Bull. 41, 102-112.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.091   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3823 Yorii (1988 EC1)          Discovered 1988-Mar-10 by Arai, M. and Mori, H. at Yorii
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1988 EC1 = 1966 BS = 1975 TV3 = 1977 DM4 = 1980 TH2 = 1982 BP8 = 1986 WU2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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