Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09113386072664763 2.5131e-08  
a 2.427712366253793 7.7892e-09 au
q 2.20646556558326 6.1259e-08 au
i 2.494033036418903 4.3139e-06 deg
node 156.0598287161778 7.4804e-05 deg
peri 312.5293311852963 8.0699e-05 deg
M 138.1028712950655 2.8653e-05 deg
tp 2458670.477287961840
(2019-Jul-05.97728796)
0.00010992 TDB
period 1381.638010451381
3.78
6.6494e-06
1.821e-08
d
yr
n .2605602895091082 1.254e-09 deg/d
Q 2.648959166924326 8.4991e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1359  
   data-arc span      10053 days (27.52 yr)  
   first obs. used      1992-12-30  
   last obs. used      2020-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50438  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:00:27  

Additional Information
 Earth MOID = 1.22397 au 
 Jupiter MOID = 2.43092 au 
 T_jup = 3.502 
[ 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 15.29   n/a E2021B10  
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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-16 02:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin