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 ]  
249623 (1999 TP46)
Classification: Main-belt Asteroid          SPK-ID: 2249623
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06078682081392446 5.7417e-08  
a 3.138869493384755 4.9224e-08 au
q 2.948067595932081 1.9968e-07 au
i 15.93765679284842 8.8924e-06 deg
node 19.60256609433447 2.2475e-05 deg
peri 268.0927751971455 9.5305e-05 deg
M 334.9972317066654 9.9293e-05 deg
tp 2459141.573002944340
(2020-Oct-19.07300294)
0.00056213 TDB
period 2031.226321187054
5.56
4.7781e-05
1.308e-07
d
yr
n .1772328352803222 4.1691e-09 deg/d
Q 3.329671390837427 5.2217e-08 au
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      7149 days (19.57 yr)  
   first obs. used      1999-10-04  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57168  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:33:23  

Additional Information
 Earth MOID = 1.99014 au 
 Jupiter MOID = 1.81717 au 
 T_jup = 3.149 
[ 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 15.4   n/a MPO396803  
diameter diameter 3.940 km 1.819 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249623 (1999 TP46)          Discovered 1999-Oct-04 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 1999 TP46 = 2008 EB162 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-05 11:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin