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28954 Feiyiou (2000 YA41)
Classification: Main-belt Asteroid          SPK-ID: 2028954
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1458821550308808 3.1487e-08  
a 2.610440523866607 1.2154e-08 au
q 2.229623834665005 8.3526e-08 au
i 2.229266300174662 3.9992e-06 deg
node 115.2773461097327 9.4319e-05 deg
peri 299.4285141041341 9.5549e-05 deg
M 252.8128134663413 1.6691e-05 deg
tp 2459459.179681026478
(2021-Sep-01.67968103)
7.2945e-05 TDB
period 1540.526349366208
4.22
1.0759e-05
2.946e-08
d
yr
n .2336863632018424 1.6321e-09 deg/d
Q 2.991257213068209 1.3927e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1355  
   data-arc span      8705 days (23.83 yr)  
   first obs. used      1996-12-20  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50127  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:14:33  

Additional Information
 Earth MOID = 1.24217 au 
 Jupiter MOID = 2.34787 au 
 T_jup = 3.394 
[ 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 14.5   n/a MPO384992  
diameter diameter 7.432 km 0.329 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.16569 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.067   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

28954 Feiyiou           Discovered 2000 Dec. 30 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Fei Yiou (b. 1995) was awarded second place in the 2013 Intel International Science and Engineering Fair for her electrical and mechanical engineering team project. She attends the High School No. 7, Chengdu, Sichuan, China.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-04-15Last Updated: 2014-04-17

Alternate Designations
 2000 YA41 = 1997 BK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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