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JPL Small-Body Database Browser
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20536 Tracicarter (1999 RF81)
Classification: Main-belt Asteroid          SPK-ID: 2020536
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1599704696242733 3.4092e-08  
a 2.278968457053407 7.2549e-09 au
q 1.914400802719668 8e-08 au
i 2.971907362136265 3.7134e-06 deg
node 127.1959170973549 7.7882e-05 deg
peri 148.1097536485907 7.9187e-05 deg
M 312.010797167277 1.3175e-05 deg
tp 2458768.012389286241
(2019-Oct-11.51238929)
4.5954e-05 TDB
period 1256.625586243872
3.44
6.0006e-06
1.643e-08
d
yr
n .2864815136193917 1.368e-09 deg/d
Q 2.643536111387146 8.4155e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1260  
   data-arc span      12890 days (35.29 yr)  
   first obs. used      1984-01-25  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52417  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:53:16  

Additional Information
 Earth MOID = .89828 au 
 Jupiter MOID = 2.46478 au 
 T_jup = 3.588 
[ 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 15.2   n/a MPO431736  
rotation period rot_per 4.82 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

20536 Tracicarter           Discovered 1999 Sept. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Traci A. Carter mentored a finalist in the 2004 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. She teaches at the Providence Christian School, Cape Coral, Florida.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 RF81 = 1984 BC7 = 1998 DZ29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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