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JPL Small-Body Database Browser
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15510 Phoeberounds (1999 TF127)
Classification: Main-belt Asteroid          SPK-ID: 2015510
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09128045864345614 3.3501e-08  
a 2.427551262366934 9.614e-09 au
q 2.20596326975758 8.4965e-08 au
i 2.494016847991983 4.4759e-06 deg
node 156.0631326830128 7.8831e-05 deg
peri 312.5175227813268 8.5596e-05 deg
M 85.98285493613783 3.0135e-05 deg
tp 2458670.540678649777
(2019-Jul-06.04067865)
0.000116 TDB
period 1381.500483722086
3.78
8.2069e-06
2.247e-08
d
yr
n .2605862279758857 1.548e-09 deg/d
Q 2.649139254976289 1.0492e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1196  
   data-arc span      9869 days (27.02 yr)  
   first obs. used      1992-12-30  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50899  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 23:50:31  

Additional Information
 Earth MOID = 1.22359 au 
 Jupiter MOID = 2.4315 au 
 T_jup = 3.503 
[ 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 15.3   n/a MPO467861  
diameter diameter 5.169 km 0.260 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15510 Phoeberounds           Discovered 1999 Oct. 4 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Phoebe Robeson Rounds (b. 1985) was named a finalist in the 2003 Intel Science Talent Search, a science competition for high school seniors, for her physics project. She attends the Irondequoit High School, Rochester, New York.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030216/MPCPages.arcLast Updated: 2011-11-22

[ show close-approach data ]
Alternate Designations
 1999 TF127 = 1992 YE5 = 1997 EK39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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