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4407 Taihaku (1988 TF1)
Classification: Main-belt Asteroid          SPK-ID: 2004407
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 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05781808843483065 1.1977e-08  
a 2.713257758668377 9.8096e-09 au
q 2.556382381631199 3.1331e-08 au
i 4.717434962822795 7.9626e-07 deg
node 256.9767666766528 9.7724e-06 deg
peri 89.61571638565461 2.5313e-05 deg
M 109.7777581858426 2.318e-05 deg
tp 2458702.709202031053
(2019-Aug-07.20920203)
0.00010487 TDB
period 1632.431653099032
4.47
8.8529e-06
2.424e-08
d
yr
n .2205299066068529 1.196e-09 deg/d
Q 2.870133135705556 1.0377e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2992  
   data-arc span      18437 days (50.48 yr)  
   first obs. used      1970-09-27  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43109  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:36:51  

Additional Information
 Earth MOID = 1.55268 au 
 Jupiter MOID = 2.37026 au 
 T_jup = 3.355 
[ 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 12.64   n/a MPCxxxxx  
diameter diameter 9.316 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.311   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Sa   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4407 Taihaku (1988 TF1)          Discovered 1988-Oct-13 by Koishikawa, M. at Ayashi
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1988 TF1 = 1970 ST = 1979 WT4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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