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249221 (2008 EZ99)
Classification: Outer Main-belt Asteroid          SPK-ID: 2249221
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1263003070955364 4.6657e-08  
a 3.204022259271423 3.5616e-08 au
q 2.799353263984508 1.4768e-07 au
i 23.20555958737651 6.5859e-06 deg
node 40.16684526164165 1.2319e-05 deg
peri 61.58634865264001 3.263e-05 deg
M 111.7167136312918 2.8374e-05 deg
tp 2458350.434130858020
(2018-Aug-19.93413086)
0.00016226 TDB
period 2094.795892971584
5.74
3.4928e-05
9.563e-08
d
yr
n .1718544518861549 2.8655e-09 deg/d
Q 3.608691254558338 4.0114e-08 au
  Orbit Determination Parameters
   # obs. used (total)      537  
   data-arc span      8393 days (22.98 yr)  
   first obs. used      1997-05-06  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49686  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:41:44  

Additional Information
 Earth MOID = 1.88568 au 
 Jupiter MOID = 1.91184 au 
 T_jup = 3.055 
[ 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 14.8   n/a MPO254459  
diameter diameter 8.204 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249221 (2008 EZ99)          Discovered 2008-Mar-06 by CSS at Catalina
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2023-Apr-15 23:46 < 00:01 Jupiter 1.90224504006793 1.90224432068171 1.90224575945643 6.96705803688638 6.90285066588266 2460050.490453339 0.39552193580599 216.672514462356 30.1688670407074 -85.1690227256918 2942312.35287505 T 16 CATAB v2.0f-lin.ifort 2020-May-21 13:42:06 2020-May-21 13:42
2034-Jul-11 16:18 < 00:01 Jupiter 1.9613116153285 1.96131072677237 1.96131250388463 6.250032970909 6.18054863657575 2464155.179100700 0.940605591584717 233.945659550616 43.7590876400335 -89.2523063822215 2688137.0695553 T 16 CATAB v2.0f-lin.ifort 2020-May-21 13:42:06 2020-May-21 13:42
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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