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312368 (2008 EF5)
Classification: Main-belt Asteroid          SPK-ID: 2312368
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0689279451883807 4.235e-08  
a 2.972290036901126 2.698e-08 au
q 2.767416192153635 1.2471e-07 au
i 11.96387025439758 4.7866e-06 deg
node 128.1996715795468 1.9344e-05 deg
peri 5.588580526464726 4.2662e-05 deg
M 179.7522063932791 4.126e-05 deg
tp 2458065.940547220427
(2017-Nov-08.44054722)
0.00020886 TDB
period 1871.695539939842
5.12
2.5485e-05
6.977e-08
d
yr
n .1923389741109127 2.6188e-09 deg/d
Q 3.177163881648617 2.884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      7348 days (20.12 yr)  
   first obs. used      2000-09-05  
   last obs. used      2020-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51132  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:47:43  

Additional Information
 Earth MOID = 1.78209 au 
 Jupiter MOID = 1.86391 au 
 T_jup = 3.226 
[ 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 15.52   n/a E2021B25  

312368 (2008 EF5)          Discovered 2008-Mar-02 by PMO NEO Survey Program at Purple Mountain
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ 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
1902-Oct-17 08:59 00:05 Jupiter 1.87141143204289 1.87141083541484 1.87141202868721 3.85107932001307 3.73170051534139 2416039.873976023 4.58875335106893 384.60451486821 18.3026881967779 -87.1169651667511 3256667.33574968 T 20 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:44 2020-Nov-11 18:47
1938-Oct-27 20:09 00:03 Jupiter 1.86700121532181 1.86700068806664 1.86700174258345 3.73240309783103 3.60880470242006 2429199.339240980 3.13767555195842 264.556864995857 16.8888049715658 85.6073736741102 3169529.59520609 T 20 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:44 2020-Nov-11 18:47
1974-Nov-14 01:30 00:02 Jupiter 1.90121135290366 1.90121062814275 1.90121207766695 3.54715508786978 3.41925059800741 2442365.562609841 1.74141206317597 134.257170913104 16.4769742069294 76.3894433606924 3146283.84714272 T 20 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:44 2020-Nov-11 18:47
2010-Dec-08 19:14 < 00:01 Jupiter 1.9644393376496 1.96443879292159 1.96443988237761 3.36117212938484 3.23034403763531 2455539.301351908 0.326453307567245 42.5758695724351 17.7388878263563 67.2212687763016 2964098.12532805 T 20 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:44 2020-Nov-11 18:47
2091-Nov-19 20:18 00:03 Jupiter 1.98131903478966 1.98131778953408 1.98132028004976 4.00644112620772 3.89827677159773 2485105.345989898 2.83450189394447 179.059280099248 26.3046897592886 -72.2114789865394 3610210.08976506 T 20 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:44 2020-Nov-11 18:47
2127-Dec-04 18:03 00:04 Jupiter 1.90495583882923 1.9049546245912 1.90495705308491 3.91881976916131 3.80366471764683 2498268.252418329 4.18040833319796 321.862279758342 20.6910133859596 -80.6139366149668 3384322.82286478 T 20 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:44 2020-Nov-11 18:47
2163-Dec-17 13:52 00:06 Jupiter 1.87508392485656 1.87508329513373 1.87508455460465 3.7753925367846 3.65378414272697 2511430.077887883 5.61947035709793 462.142816560283 18.0477795016025 -88.057046515503 3180592.96145048 T 20 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:44 2020-Nov-11 18:47
2200-Jan-01 04:27 00:07 Jupiter 1.87534507460238 1.87534430150461 1.87534584774844 3.5459466565249 3.41619865567388 2524593.685556781 7.3159866454785 569.433612189879 17.0065616767774 85.1020755099654 2995884.77055548 T 20 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:44 2020-Nov-11 18:47
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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