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 ]  
249211 (2008 DJ73)
Classification: Outer Main-belt Asteroid          SPK-ID: 2249211
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01655172009536311 6.008e-08  
a 3.207288461303094 3.6144e-08 au
q 3.154202320426517 1.9267e-07 au
i 21.71562906324866 6.2689e-06 deg
node 167.9299217509533 1.5773e-05 deg
peri 204.7174973998754 0.00017188 deg
M 235.6706482771788 0.00017412 deg
tp 2459925.063792650117
(2022-Dec-11.56379265)
0.0010187 TDB
period 2097.999882888179
5.74
3.5465e-05
9.71e-08
d
yr
n .1715920019520743 2.9006e-09 deg/d
Q 3.26037460217967 3.6742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      6683 days (18.30 yr)  
   first obs. used      2002-02-07  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56258  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 02:06:36  

Additional Information
 Earth MOID = 2.15078 au 
 Jupiter MOID = 1.81074 au 
 T_jup = 3.081 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457358.5 (2015-Dec-02.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01604092015549276 6.0673e-08  
q 3.157495109213611 1.939e-07 au
tp 2457854.814173244559
(2017-Apr-11.31417324)
0.001024 TDB
node 167.9505618689587 1.5774e-05 deg
peri 209.6334956678558 0.00017451 deg
i 21.71191137553523 6.2678e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      6683 days (18.30 yr)  
   first obs. used      2002-02-07  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56258  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 02:06:36  

Additional Information
 Jupiter MOID = 1.81074 au 
 T_jup = 3.081 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.681215985892399E-15 -1.156488929453777E-14 8.362552194354525E-12 1.141333574408382E-14 1.412152601521623E-12 8.362550877123263E-15
q -1.156488929453777E-14 3.759683290449816E-14 -1.65712341028401E-11 -3.754635901731317E-14 -2.84405885966674E-12 -1.977857067278904E-14
tp 8.362552194354525E-12 -1.65712341028401E-11 1.0485531936871E-6 -2.988940504761654E-11 1.780152218735539E-7 1.109989541743716E-10
node 1.141333574408382E-14 -3.754635901731317E-14 -2.988940504761654E-11 2.488120595728575E-10 -2.357554279404912E-10 2.924547129306347E-11
peri 1.412152601521623E-12 -2.84405885966674E-12 1.780152218735539E-7 -2.357554279404912E-10 3.045539570707176E-8 -8.506549758990201E-12
i 8.362550877123263E-15 -1.977857067278904E-14 1.109989541743716E-10 2.924547129306347E-11 -8.506549758990201E-12 3.928571700014664E-11

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 15.62   n/a E2021B55  
diameter diameter 5.098 km 0.238 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249211 (2008 DJ73)          Discovered 2008-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 2021-May-19 00:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin