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22847 Utley (1999 RO121)
Classification: Main-belt Asteroid          SPK-ID: 2022847
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1155419622544364 3.2667e-08  
a 2.515825927651055 1.0552e-08 au
q 2.225142463279664 8.536e-08 au
i 2.320896968663071 4.2508e-06 deg
node 34.23506759905262 0.00012312 deg
peri 25.24835394599695 0.00012553 deg
M 4.626067531483748 2.5884e-05 deg
tp 2458981.770388146620
(2020-May-12.27038815)
0.00010477 TDB
period 1457.536065206199
3.99
9.1702e-06
2.511e-08
d
yr
n .2469921730197945 1.554e-09 deg/d
Q 2.806509392022445 1.1772e-08 au
  Orbit Determination Parameters
   # obs. used (total)      923  
   data-arc span      9776 days (26.77 yr)  
   first obs. used      1993-01-21  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53663  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:34:35  

Additional Information
 Earth MOID = 1.23777 au 
 Jupiter MOID = 2.48354 au 
 T_jup = 3.448 
[ 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 15.5   n/a MPO449122  

22847 Utley           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Meredith Utley mentored a finalist in the 2006 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Powhatan Junior High School, Powhatan, Virginia.
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 RO121 = 1993 BP9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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