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 ]  
249429 (2009 EG23)
Classification: Main-belt Asteroid          SPK-ID: 2249429
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1525076403000683 4.4044e-08  
a 3.144957899799393 3.7814e-08 au
q 2.665327791657929 1.4772e-07 au
i 4.79153736392763 6.087e-06 deg
node 63.6730757660312 6.2892e-05 deg
peri 225.6304346647438 6.6688e-05 deg
M 282.1406446209928 2.3671e-05 deg
tp 2459441.084266298814
(2021-Aug-14.58426630)
0.00013753 TDB
period 2037.139083614073
5.58
3.6741e-05
1.006e-07
d
yr
n .1767184199133457 3.1872e-09 deg/d
Q 3.624588007940857 4.3581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      308  
   data-arc span      7132 days (19.53 yr)  
   first obs. used      2000-11-05  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58256  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:17:57  

Additional Information
 Earth MOID = 1.65186 au 
 Jupiter MOID = 1.55781 au 
 T_jup = 3.186 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457623.5 (2016-Aug-23.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1514141250949521 4.4067e-08  
q 2.670999943903847 1.4785e-07 au
tp 2457401.212177758175
(2016-Jan-13.71217776)
0.00012542 TDB
node 63.68811959648365 6.2875e-05 deg
peri 225.4475845288812 6.6725e-05 deg
i 4.791114681053565 6.086e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      308  
   data-arc span      7132 days (19.53 yr)  
   first obs. used      2000-11-05  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58256  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:17:57  

Additional Information
 Jupiter MOID = 1.55781 au 
 T_jup = 3.186 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.941916507647154E-15 -6.364781583276397E-15 -1.201479473496839E-12 -3.429293150757791E-16 -1.712501738472406E-13 -8.998744362261821E-17
q -6.364781583276397E-15 2.18595261659567E-14 4.701219429547899E-12 -7.14827074854447E-15 7.198796577623668E-13 1.542618559477928E-15
tp -1.201479473496839E-12 4.701219429547899E-12 1.573113704833873E-8 -8.198165021929017E-12 2.831137269302155E-9 -2.638787077593646E-13
node -3.429293150757791E-16 -7.14827074854447E-15 -8.198165021929017E-12 3.95327997080005E-9 -3.941217239058281E-9 -9.695911517746754E-11
peri -1.712501738472406E-13 7.198796577623668E-13 2.831137269302155E-9 -3.941217239058281E-9 4.452213365671431E-9 9.66502116521993E-11
i -8.998744362261821E-17 1.542618559477928E-15 -2.638787077593646E-13 -9.695911517746754E-11 9.66502116521993E-11 3.703882441734401E-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 15.5   n/a MPO470661  
diameter diameter 3.874 km 0.903 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249429 (2009 EG23)          Discovered 2009-Mar-07 by Mt. Lemmon Survey at Mount Lemmon
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-Jan-20 23:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin