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22889 Donnablaney (1999 SU7)
Classification: Main-belt Asteroid          SPK-ID: 2022889
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1533965057734411 4.2828e-08  
a 2.598753066562542 1.2317e-08 au
q 2.200113426783834 1.1638e-07 au
i 6.728786132343294 3.2494e-06 deg
node 70.93410141108217 3.3875e-05 deg
peri 290.8740742348803 3.5749e-05 deg
M 12.47075635701654 9.6423e-06 deg
tp 2459147.492631728486
(2020-Oct-24.99263173)
4.108e-05 TDB
period 1530.192077484421
4.19
1.0879e-05
2.979e-08
d
yr
n .2352645823338901 1.6726e-09 deg/d
Q 2.997392706341252 1.4207e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1356  
   data-arc span      10712 days (29.33 yr)  
   first obs. used      1991-11-08  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48555  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:14:22  

Additional Information
 Earth MOID = 1.2071 au 
 Jupiter MOID = 2.48448 au 
 T_jup = 3.389 
[ 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 14.94   n/a E2021B10  

22889 Donnablaney           Discovered 1999 Sept. 29 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Donna Blaney mentored a finalist in the 2006 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Takoma Park Middle School, Silver Spring, Maryland.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061009/MPCPages.arcLast Updated: 2006-10-14

[ show close-approach data ]
Alternate Designations
 1999 SU7 = 2001 AS24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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