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85401 Yamatenclub (1996 TW14)
Classification: Main-belt Asteroid          SPK-ID: 2085401
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1242922090565525 4.6348e-08  
a 2.530856358749167 9.3141e-09 au
q 2.21629063111541 1.1972e-07 au
i 3.497935076669897 5.6077e-06 deg
node 2.070158522284649 5.239e-05 deg
peri 40.23937270208287 5.6284e-05 deg
M 299.006963978936 2.0655e-05 deg
tp 2459249.659484252102
(2021-Feb-04.15948425)
8.4915e-05 TDB
period 1470.617306208197
4.03
8.1183e-06
2.223e-08
d
yr
n .2447951608350204 1.3513e-09 deg/d
Q 2.845422086382924 1.0472e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1297  
   data-arc span      9692 days (26.54 yr)  
   first obs. used      1994-03-10  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:09:41  

Additional Information
 Earth MOID = 1.22595 au 
 Jupiter MOID = 2.53967 au 
 T_jup = 3.437 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456630.5 (2013-Dec-04.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1264354568564979 4.6668e-08  
q 2.210736699891186 1.2106e-07 au
tp 2456307.918254892423
(2013-Jan-15.41825489)
7.7093e-05 TDB
node 2.259394817401319 5.2335e-05 deg
peri 39.92401834120506 5.6049e-05 deg
i 3.500943444759958 5.6103e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1297  
   data-arc span      9692 days (26.54 yr)  
   first obs. used      1994-03-10  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:09:41  

Additional Information
 Jupiter MOID = 2.53967 au 
 T_jup = 3.437 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.177887741872017E-15 -5.637948446089818E-15 -2.223331989822549E-12 7.851043931868994E-15 -5.75268418814008E-13 1.597323425986618E-15
q -5.637948446089818E-15 1.465482747227033E-14 5.791565218295508E-12 -2.096052023801497E-14 1.500832433802935E-12 -3.997774885796654E-15
tp -2.223331989822549E-12 5.791565218295508E-12 5.943396049246525E-9 -2.033959775671933E-11 1.55328131251172E-9 -1.198833885291414E-12
node 7.851043931868994E-15 -2.096052023801497E-14 -2.033959775671933E-11 2.738902340342823E-9 -2.738460280772145E-9 -1.183179379015311E-11
peri -5.75268418814008E-13 1.500832433802935E-12 1.55328131251172E-9 -2.738460280772145E-9 3.14154009628231E-9 1.150917082238419E-11
i 1.597323425986618E-15 -3.997774885796654E-15 -1.198833885291414E-12 -1.183179379015311E-11 1.150917082238419E-11 3.147506245028304E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO253865  
diameter diameter 2.972 km 1.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 17.78 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.219   0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85401 Yamatenclub           Discovered 1996 Oct. 9 by T. Okuni at Nanyo.
The Yamagata Tenmon Club, established in 1961, consists of a group of amateur astronomers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110218/MPCPages.arcLast Updated: 2011-02-22

Alternate Designations
 1996 TW14 = 2000 SS145 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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