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11822 (1981 TK)
Classification: Main-belt Asteroid          SPK-ID: 2011822
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2501074395417703 4.7307e-08  
a 2.352289822787934 7.9555e-09 au
q 1.763964638150279 1.1238e-07 au
i 24.43040301737527 7.0415e-06 deg
node 8.289962562313475 9.3288e-06 deg
peri 27.74733218131353 1.5232e-05 deg
M 131.024729503918 1.1476e-05 deg
tp 2458120.893078223436
(2018-Jan-02.39307822)
4.1235e-05 TDB
period 1317.754995513272
3.61
6.685e-06
1.83e-08
d
yr
n .2731919068610915 1.3859e-09 deg/d
Q 2.940615007425589 9.9452e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1380  
   data-arc span      13760 days (37.67 yr)  
   first obs. used      1981-09-07  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4145  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:57:49  

Additional Information
 Earth MOID = .787627 au 
 Jupiter MOID = 2.59005 au 
 T_jup = 3.397 
[ 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 13.7   n/a MPO365392  
diameter diameter 4.551 km 0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.258   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

11822 (1981 TK)          Discovered 1981-Oct-06 by Vavrova, Z. at Klet
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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