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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09059533036199421 2.4725e-08  
a 2.428935789038549 7.4014e-09 au
q 2.208885548802531 5.9816e-08 au
i 2.494476381489057 3.765e-06 deg
node 156.0447501857542 6.6338e-05 deg
peri 312.6297074903691 7.0312e-05 deg
M 189.0677028449382 2.3235e-05 deg
tp 2460053.014173117613
(2023-Apr-18.51417312)
9.018e-05 TDB
period 1382.682537214951
3.79
6.3199e-06
1.73e-08
d
yr
n .2603634531503703 1.1901e-09 deg/d
Q 2.648986029274567 8.0719e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      10449 days (28.61 yr)  
   first obs. used      1992-12-30  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5076  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:27:32  

Additional Information
 Earth MOID = 1.22683 au 
 Jupiter MOID = 2.42995 au 
 T_jup = 3.502 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.30   n/a MPO636297  
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

Alternate Designations
 1999 TF127 = 1992 YE5 = 1997 EK39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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