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4459 Nusamaibashi (1990 BP2)
Classification: Main-belt Asteroid          SPK-ID: 2004459
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1186035528033308 1.6597e-08  
a 2.254221073531141 6.2023e-09 au
q 1.986862445406209 3.9231e-08 au
i 2.793283687282449 8.8113e-07 deg
node 157.2454916683427 1.0575e-05 deg
peri 283.1505377465521 1.3808e-05 deg
M 91.28403417773882 9.4029e-06 deg
tp 2458887.037560457746
(2020-Feb-07.53756046)
3.2039e-05 TDB
period 1236.212654838287
3.38
5.102e-06
1.397e-08
d
yr
n .2912120326474839 1.2019e-09 deg/d
Q 2.521579701656073 6.9379e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2391  
   data-arc span      35189 days (96.34 yr)  
   first obs. used      1924-11-17  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44315  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:38:47  

Additional Information
 Earth MOID = 1.0044 au 
 Jupiter MOID = 2.67216 au 
 T_jup = 3.614 
[ 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 13.89   n/a E2021B10  
diameter diameter 4.242 km 0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 287.484 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.326   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4459 Nusamaibashi (1990 BP2)          Discovered 1990-Jan-30 by Matsuyama and Watanabe at Kushiro
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1990 BP2 = 1978 PN3 = 1978 RD13 = 1978 RL3 = 1978 TS9 = 1985 SZ4 = A924 WF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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