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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
226549 (2003 UA304)
Classification: Outer Main-belt Asteroid          SPK-ID: 2226549
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1659128394290929 7.4415e-08  
a 3.211846767551563 5.9248e-08 au
q 2.67896015053593 2.4219e-07 au
i 4.617657444872355 1.0695e-05 deg
node 336.3847217867577 6.6909e-05 deg
peri 320.5754323561015 7.2564e-05 deg
M 327.7776637159001 2.7892e-05 deg
tp 2458788.685075764506
(2019-Nov-01.18507576)
0.0001643 TDB
period 2102.474093681773
5.76
5.8176e-05
1.593e-07
d
yr
n .1712268422625754 4.7379e-09 deg/d
Q 3.744733384567197 6.9078e-08 au
  Orbit Determination Parameters
   # obs. used (total)      238  
   data-arc span      5300 days (14.51 yr)  
   first obs. used      2003-10-17  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59016  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:46:17  

Additional Information
 Earth MOID = 1.66453 au 
 Jupiter MOID = 1.49693 au 
 T_jup = 3.165 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456517.5 (2013-Aug-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1661555669714276 7.4799e-08  
q 2.675896847855953 2.438e-07 au
tp 2456695.758621954406
(2014-Feb-07.25862195)
0.00015728 TDB
node 336.5043731041076 6.6814e-05 deg
peri 321.4908851764129 7.2407e-05 deg
i 4.622036602695196 1.0705e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      238  
   data-arc span      5300 days (14.51 yr)  
   first obs. used      2003-10-17  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59016  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:46:17  

Additional Information
 Jupiter MOID = 1.49693 au 
 T_jup = 3.165 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.594821780617564E-15 -1.785403351651908E-14 7.295460448502874E-12 2.075074915180458E-14 1.138756059033893E-12 -4.067600189016119E-16
q -1.785403351651908E-14 5.943848136541815E-14 -2.415847998022106E-11 -6.62258563878311E-14 -3.833211126509816E-12 3.987357271268929E-15
tp 7.295460448502874E-12 -2.415847998022106E-11 2.473619923700848E-8 4.082914176978859E-11 4.392029764050048E-9 -1.316679897964277E-12
node 2.075074915180458E-14 -6.62258563878311E-14 4.082914176978859E-11 4.464051101948999E-9 -4.441996413147012E-9 2.125430463878747E-10
peri 1.138756059033893E-12 -3.833211126509816E-12 4.392029764050048E-9 -4.441996413147012E-9 5.24273401957565E-9 -2.12166261212317E-10
i -4.067600189016119E-16 3.987357271268929E-15 -1.316679897964277E-12 2.125430463878747E-10 -2.12166261212317E-10 1.146052586741476E-10

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 15.5   n/a MPO437074  
diameter diameter 4.896 km 1.566 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226549 (2003 UA304)          Discovered 2003-Oct-17 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-22 11:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin