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6634 (1987 KB)
Classification: Main-belt Asteroid          SPK-ID: 2006634
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2657709441621905 1.458e-08  
a 2.37227746752172 6.2974e-09 au
q 1.741795045163782 3.5377e-08 au
i 10.71343602945602 3.7074e-07 deg
node 243.2651513948966 3.9842e-06 deg
peri 66.84723692796686 4.7837e-06 deg
M 28.3770119470885 4.7972e-06 deg
tp 2459095.301192969142
(2020-Sep-02.80119297)
1.766e-05 TDB
period 1334.586270102149
3.65
5.3142e-06
1.455e-08
d
yr
n .2697465185015321 1.0741e-09 deg/d
Q 3.002759889879658 7.9711e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2720  
   data-arc span      21265 days (58.22 yr)  
   first obs. used      1962-11-24  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39851  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 18:56:46  

Additional Information
 Earth MOID = .758279 au 
 Jupiter MOID = 2.34511 au 
 T_jup = 3.473 
[ 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 12.66   n/a E2021B10  
diameter diameter 10.651 km 0.510 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.333 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2014) Minor Planet Bull. 41, 92-95.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.171   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

6634 (1987 KB)          Discovered 1987-May-23 by Campinas at Campinas
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1987 KB = 1951 TR = 1962 WM = 1976 KC1 = 1982 AO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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