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30408 (2000 KW55)
Classification: Main-belt Asteroid          SPK-ID: 2030408
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03272970539868735 3.8187e-08  
a 2.994076307543871 1.6534e-08 au
q 2.89608107205677 1.1742e-07 au
i 9.852845092145078 3.5401e-06 deg
node 88.55410339034131 2.978e-05 deg
peri 150.8052327151877 7.6407e-05 deg
M 356.0804825693501 7.0648e-05 deg
tp 2459221.102637593736
(2021-Jan-06.60263759)
0.00037137 TDB
period 1892.311914662249
5.18
1.5674e-05
4.291e-08
d
yr
n .1902434779438859 1.5758e-09 deg/d
Q 3.092071543030971 1.7075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1487  
   data-arc span      8283 days (22.68 yr)  
   first obs. used      1997-11-05  
   last obs. used      2020-07-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49702  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:34:44  

Additional Information
 Earth MOID = 1.88428 au 
 Jupiter MOID = 1.93989 au 
 T_jup = 3.232 
[ 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 13.63   n/a E2021B10  
diameter diameter 4.426 km 0.325 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.846427 h n/a LCDB (Rev. 2020-October); 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 0.394   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30408 (2000 KW55)          Discovered 2000-May-27 by LINEAR at Socorro
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 KW55 = 1999 CM109 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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