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 ]  
243899 (2001 DA12)
Classification: Outer Main-belt Asteroid          SPK-ID: 2243899
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09956877853601556 4.2591e-08  
a 3.232547777445009 3.0811e-08 au
q 2.910686943685498 1.3359e-07 au
i 6.701862548552918 4.8532e-06 deg
node 127.8479266296295 4.6789e-05 deg
peri 359.1585377695885 5.5656e-05 deg
M 141.4524183248585 2.8821e-05 deg
tp 2458166.389224642328
(2018-Feb-16.88922464)
0.00016919 TDB
period 2122.833124274633
5.81
3.035e-05
8.309e-08
d
yr
n .169584691271016 2.4246e-09 deg/d
Q 3.55440861120452 3.3879e-08 au
  Orbit Determination Parameters
   # obs. used (total)      392  
   data-arc span      8892 days (24.34 yr)  
   first obs. used      1995-01-28  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60311  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:26:10  

Additional Information
 Earth MOID = 1.92588 au 
 Jupiter MOID = 1.49646 au 
 T_jup = 3.168 
[ 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 15.1   n/a MPO437138  
diameter diameter 5.205 km 3.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.094   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243899 (2001 DA12)          Discovered 2001-Feb-17 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ 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-Sep-22 14:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin