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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 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1915-Nov-25 07:49 00:02 Jupiter 1.65985856873541 1.65985723655935 1.65985990090997 1.39548663802677 0.962697747493873 2420826.825787480 1.60843850530497 517.278210950248 36.5796898049677 -22.6489874868821 3386253.5415785 T 37 CATAB v2.0g-lin.ifort 2021-Aug-25 09:59:10 2021-Aug-25 09:59
1925-Jun-05 16:48 00:01 Jupiter 1.4830144237426 1.48301336426828 1.48301548322235 1.04116811323607 n/a 2424307.199699967 1.37826784684287 164.134828002714 21.8019610120485 -72.7934901078702 9725463.0240346 F 37 CATAB v2.0g-lin.ifort 2021-Aug-25 09:59:10 2021-Aug-25 09:59
1975-Feb-26 22:25 < 00:01 Jupiter 1.61611023379852 1.61610950295544 1.61611096464756 1.1998743287428 0.625679407722388 2442470.434211276 0.831828277752651 988.735082859137 80.0938893995308 -17.5561877198079 4344124.53218626 T 37 CATAB v2.0g-lin.ifort 2021-Aug-25 09:59:10 2021-Aug-25 09:59
1984-Sep-05 02:54 < 00:01 Jupiter 1.52489062572856 1.52489008648723 1.52489116497066 1.08083014830408 0.239300935672344 2445948.621046179 0.588246178945523 5858.34436556773 190.59573258096 -2.82577693296637 5391180.49263582 T 37 CATAB v2.0g-lin.ifort 2021-Aug-25 09:59:10 2021-Aug-25 09:59
2034-May-15 17:46 < 00:01 Jupiter 1.55539579519048 1.55539543242223 1.55539615795878 0.97256543402007 n/a 2464098.240306654 0.419419973811587 23.1317901493952 7.67725637487907 -41.3524056536693 21391861.9335251 F 37 CATAB v2.0g-lin.ifort 2021-Aug-25 09:59:10 2021-Aug-25 09:59
2043-Nov-25 14:33 < 00:01 Jupiter 1.58155415572654 1.5815535687848 1.5815547426726 1.15717595654248 0.517618978387316 2467579.106346637 0.5724094313043 783.61735676784 82.1294563842159 -19.9335786519358 7976182.87143163 T 37 CATAB v2.0g-lin.ifort 2021-Aug-25 09:59:10 2021-Aug-25 09:59
2093-Aug-13 04:15 00:01 Jupiter 1.50865277275808 1.50865177788168 1.5086537676349 0.823146751560426 n/a 2485737.676932511 1.38507288647987 64.0797506311437 8.16251740979238 -39.6533157760724 17842878.9528912 F 37 CATAB v2.0g-lin.ifort 2021-Aug-25 09:59:10 2021-Aug-25 09:59
2103-Mar-01 11:59 00:01 Jupiter 1.62204887114093 1.62204759894375 1.62205014335351 1.2362000802515 0.695560713579976 2489223.999391227 1.42727290967115 743.756403613894 53.8628688031365 -34.7008227674749 8081646.68237108 T 37 CATAB v2.0g-lin.ifort 2021-Aug-25 09:59:10 2021-Aug-25 09:59
2152-Dec-14 06:06 00:02 Jupiter 1.49722280114354 1.49722155215288 1.49722405013491 0.770762909069412 n/a 2507409.754210445 1.75610526497986 80.6981595551415 7.86698147636485 -39.7112795248352 18306539.1444576 F 37 CATAB v2.0g-lin.ifort 2021-Aug-25 09:59:10 2021-Aug-25 09:59
2162-Jul-06 23:50 00:02 Jupiter 1.6220288476507 1.62202739744681 1.62203029787451 1.25313513769976 0.725223309435833 2510901.492984622 1.65397583543326 795.783934794623 51.3096105577232 -36.3171220798762 7807196.34073554 T 37 CATAB v2.0g-lin.ifort 2021-Aug-25 09:59:10 2021-Aug-25 09:59

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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