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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2494928709422497 1.5584e-08  
a 2.353665874668461 7.8329e-09 au
q 1.766443018358625 3.7562e-08 au
i 24.42366444280218 9.368e-07 deg
node 8.242501024584222 2.0309e-06 deg
peri 27.66732865380371 4.0357e-06 deg
M 295.0137793141275 5.8527e-06 deg
tp 2459438.586309436008
(2021-Aug-12.08630944)
2.2214e-05 TDB
period 1318.911462958729
3.61
6.5839e-06
1.803e-08
d
yr
n .2729523626949212 1.3626e-09 deg/d
Q 2.940888730978296 9.7871e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1447  
   data-arc span      14221 days (38.93 yr)  
   first obs. used      1981-09-07  
   last obs. used      2020-08-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41946  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:58:31  

Additional Information
 Earth MOID = .789388 au 
 Jupiter MOID = 2.59356 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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