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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .238439229515118 6.9457e-09  
a 2.357922445192908 8.2354e-09 au
q 1.795701234104708 1.9892e-08 au
i 25.65782363720262 5.1635e-07 deg
node 88.8135269256197 1.5009e-06 deg
peri 145.8383383905939 4.9513e-06 deg
M 7.017958205402306 7.6038e-06 deg
tp 2459174.718927603889
(2020-Nov-21.21892760)
2.7849e-05 TDB
period 1322.490928409269
3.62
6.9285e-06
1.897e-08
d
yr
n .2722135874557708 1.4261e-09 deg/d
Q 2.920143656281109 1.0199e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2000  
   data-arc span      11749 days (32.17 yr)  
   first obs. used      1988-05-14  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38545  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:38:48  

Additional Information
 Earth MOID = .81314 au 
 Jupiter MOID = 2.23 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 13.07   n/a E2021B10  
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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