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 ]  
442805 (2013 AL28)
Classification: Main-belt Asteroid          SPK-ID: 2442805
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1708856746672347 6.7918e-08  
a 2.685697816423106 4.6126e-08 au
q 2.226750533111324 1.9706e-07 au
i 12.53669095768761 9.1274e-06 deg
node 136.1634781706881 2.6464e-05 deg
peri 296.0642015243258 3.4973e-05 deg
M 288.8900372906936 2.1466e-05 deg
tp 2459318.049984661242
(2021-Apr-13.54998466)
9.8009e-05 TDB
period 1607.622759491139
4.40
4.1416e-05
1.134e-07
d
yr
n .2239331322442529 5.769e-09 deg/d
Q 3.144645099734887 5.4009e-08 au
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      5256 days (14.39 yr)  
   first obs. used      2003-11-21  
   last obs. used      2018-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70675  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:00:12  

Additional Information
 Earth MOID = 1.27388 au 
 Jupiter MOID = 2.18006 au 
 T_jup = 3.319 
[ 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 16.5   n/a MPO440834  

442805 (2013 AL28)          Discovered 2007-Nov-07 by CSS at Catalina
Reference: Last Updated: 2015-09-02

Alternate Designations
 2013 AL28 = 2007 VC304 = 2011 SZ250 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-05 11:53 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin