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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2476756544358688 3.7127e-08  
a 3.065406143105317 1.1752e-08 au
q 2.306179670499975 1.1561e-07 au
i 5.505829891621117 3.987e-06 deg
node 112.009804732411 4.271e-05 deg
peri 15.3574670624319 4.3504e-05 deg
M 63.01973070879531 7.071e-06 deg
tp 2458857.333801104838
(2020-Jan-08.83380110)
3.8511e-05 TDB
period 1960.335758543899
5.37
1.1273e-05
3.086e-08
d
yr
n .1836420105234428 1.0561e-09 deg/d
Q 3.824632615710659 1.4663e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1994  
   data-arc span      20084 days (54.99 yr)  
   first obs. used      1966-01-21  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47287  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:06:19  

Additional Information
 Earth MOID = 1.3219 au 
 Jupiter MOID = 1.25443 au 
 T_jup = 3.178 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456858.5 (2014-Jul-20.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .249389604575576 3.7106e-08  
q 2.301582104778704 1.1598e-07 au
tp 2456898.262997788925
(2014-Aug-28.76299779)
3.9986e-05 TDB
node 112.0330448555258 4.2688e-05 deg
peri 15.61411610927889 4.3463e-05 deg
i 5.507862992623507 3.9885e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1994  
   data-arc span      20084 days (54.99 yr)  
   first obs. used      1966-01-21  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47287  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:06:19  

Additional Information
 Jupiter MOID = 1.25443 au 
 T_jup = 3.178 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.376862895522964E-15 -4.291420289677156E-15 5.235153314682237E-13 -1.001633262871566E-15 1.106436296900413E-13 -1.242890119605147E-15
q -4.291420289677156E-15 1.345152186106868E-14 -1.723669905561226E-12 3.010440145243037E-15 -3.636959476348718E-13 4.01512617895599E-15
tp 5.235153314682237E-13 -1.723669905561226E-12 1.598885261132344E-9 -6.673398954034006E-13 3.496285808636142E-10 -8.490206671774904E-13
node -1.001633262871566E-15 3.010440145243037E-15 -6.673398954034006E-13 1.822267644340849E-9 -1.813578845101831E-9 5.225495049898102E-11
peri 1.106436296900413E-13 -3.636959476348718E-13 3.496285808636142E-10 -1.813578845101831E-9 1.889060796614123E-9 -5.219822322605154E-11
i -1.242890119605147E-15 4.01512617895599E-15 -8.490206671774904E-13 5.225495049898102E-11 -5.219822322605154E-11 1.590789670627499E-11

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 13.13   n/a E2021B10  
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

[ show close-approach data ]
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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