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 ]  
249421 (2009 DA122)
Classification: Main-belt Asteroid          SPK-ID: 2249421
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1142575548926677 5.7445e-08  
a 2.432575531632426 2.4864e-08 au
q 2.154635399296374 1.3499e-07 au
i 3.534950466345193 5.7232e-06 deg
node 145.9695305024164 7.897e-05 deg
peri 184.7227325029398 8.1715e-05 deg
M 93.86538945923736 2.1758e-05 deg
tp 2458239.172585399441
(2018-Apr-30.67258540)
8.2468e-05 TDB
period 1385.791610790575
3.79
2.1247e-05
5.817e-08
d
yr
n .2597793183310044 3.983e-09 deg/d
Q 2.710515663968478 2.7705e-08 au
  Orbit Determination Parameters
   # obs. used (total)      288  
   data-arc span      6549 days (17.93 yr)  
   first obs. used      2001-01-26  
   last obs. used      2019-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5577  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:58:21  

Additional Information
 Earth MOID = 1.14282 au 
 Jupiter MOID = 2.59303 au 
 T_jup = 3.495 
[ 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 16.8   n/a MPO454849  
diameter diameter 1.632 km 0.300 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.115   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249421 (2009 DA122)          Discovered 2009-Feb-27 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ 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 2019-Dec-12 06:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin