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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06718386200177069 4.841e-08  
a 2.974449302432595 3.1283e-08 au
q 2.774614310966701 1.3554e-07 au
i 11.93937445927791 5.3023e-06 deg
node 128.2783005245487 2.8791e-05 deg
peri 4.744674904967768 5.5231e-05 deg
M 103.8317593874425 4.7895e-05 deg
tp 2458060.074297577386
(2017-Nov-02.57429758)
0.0002487 TDB
period 1873.735493069864
5.13
2.9559e-05
8.093e-08
d
yr
n .1921295728940846 3.031e-09 deg/d
Q 3.17428429389849 3.3384e-08 au
  Orbit Determination Parameters
   # obs. used (total)      360  
   data-arc span      6922 days (18.95 yr)  
   first obs. used      2000-09-05  
   last obs. used      2019-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52402  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:01:47  

Additional Information
 Earth MOID = 1.78971 au 
 Jupiter MOID = 1.86864 au 
 T_jup = 3.225 
[ 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 15.4   n/a MPO437378  

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 1.87141132520852 1.87141071814978 1.8714119322861 3.85107944231665 3.73170063463346 2416039.874058011 5.16444410679847 434.102482217194 19.2903724319125 -87.4966367579262 3017170.90134226 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 06:01:49 2019-Sep-24 06:01
1938-Oct-27 20:09 00:04 Jupiter 1.86700117309067 1.86700058876693 1.86700175742397 3.73240288456867 3.60880447901 2429199.339288250 3.50795671040565 296.829287840622 17.3844730187824 85.4122286677509 3096965.16496319 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 06:01:49 2019-Sep-24 06:01
1974-Nov-14 01:30 00:02 Jupiter 1.90121137273059 1.90121058841954 1.90121215704478 3.54715447682553 3.41924996546454 2442365.562645430 1.90566853337151 150.154949098573 17.011304632959 76.4122639486523 3110724.78713214 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 06:01:49 2019-Sep-24 06:01
2010-Dec-08 19:14 < 00:01 Jupiter 1.96443939962036 1.96443878168033 1.96444001756061 3.36117118266976 3.23034305678921 2455539.301399403 0.333242210000157 56.2916411882125 17.8641217309208 65.3869847559769 2881962.17580141 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 06:01:49 2019-Sep-24 06:01
2091-Nov-19 20:18 00:03 Jupiter 1.98131894631775 1.98131732049611 1.98132057214523 4.00644167722419 3.89827733300621 2485105.345963302 3.33735865256848 206.208410936264 31.7525052496236 -69.5287860914939 2818500.88529165 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 06:01:49 2019-Sep-24 06:01
2127-Dec-04 18:03 00:05 Jupiter 1.90495576365198 1.90495424529067 1.90495728203753 3.91882006524182 3.80366501807783 2498268.252366159 4.86895726878543 374.180733950397 23.6273141064936 -79.8102027788312 2915630.677181 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 06:01:49 2019-Sep-24 06:01
2163-Dec-17 13:52 00:07 Jupiter 1.87508387187224 1.87508311584086 1.87508462794156 3.7753925840814 3.65378418810446 2511430.077792065 6.50708983571448 537.125888913222 19.8241474211442 -87.8330541223319 2967680.47235825 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 06:01:49 2019-Sep-24 06:01
2200-Jan-01 04:27 00:08 Jupiter 1.87534504397592 1.87534415714479 1.87534593087485 3.54594632296185 3.41619830728286 2524593.685449013 8.44725181920902 660.348717265856 18.6221054049842 85.0632680241751 2941723.62297392 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 06:01:49 2019-Sep-24 06:01
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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