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11271 (1988 KB)
Classification: Main-belt Asteroid          SPK-ID: 2011271
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .238454486055463 3.9616e-08  
a 2.358059638648951 9.2114e-09 au
q 1.795769739426784 9.5978e-08 au
i 25.65790525974661 4.2296e-06 deg
node 88.81463481060371 9.0196e-06 deg
peri 145.8136295983809 1.3467e-05 deg
M 312.5940109944324 1.2145e-05 deg
tp 2459174.665172711885
(2020-Nov-21.16517271)
4.528e-05 TDB
period 1322.606351887626
3.62
7.7498e-06
2.122e-08
d
yr
n .2721898314537863 1.5949e-09 deg/d
Q 2.920349537871117 1.1408e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1956  
   data-arc span      11749 days (32.17 yr)  
   first obs. used      1988-05-14  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38331  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:00:38  

Additional Information
 Earth MOID = .814822 au 
 Jupiter MOID = 2.23084 au 
 T_jup = 3.385 
[ 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 13.1   n/a MPO263451  
diameter diameter 6.815 km 0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.362 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2006) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pray, D.P.; Galad, A.; Gajdos, S.; Vilagi, J.; et al. (2006) Minor Planet Bull. 33, 92-95.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.247   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

11271 (1988 KB)          Discovered 1988-May-19 by Helin, E. F. at Palomar
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1988 KB = 1995 KA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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