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305493 (2008 EQ40)
Classification: Main-belt Asteroid          SPK-ID: 2305493
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .159185522515953 4.9597e-08  
a 3.131155618980533 3.5095e-08 au
q 2.632720975694355 1.5633e-07 au
i 8.382702018605235 7.8169e-06 deg
node 211.9778932075847 3.733e-05 deg
peri 277.3814953704791 4.8575e-05 deg
M 114.9707022524096 2.7305e-05 deg
tp 2458354.191170295419
(2018-Aug-23.69117030)
0.00015193 TDB
period 2023.743215752802
5.54
3.4024e-05
9.315e-08
d
yr
n .177888181266162 2.9907e-09 deg/d
Q 3.629590262266712 4.0681e-08 au
  Orbit Determination Parameters
   # obs. used (total)      182  
   data-arc span      6783 days (18.57 yr)  
   first obs. used      2000-10-07  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58333  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:08:17  

Additional Information
 Earth MOID = 1.66392 au 
 Jupiter MOID = 1.55719 au 
 T_jup = 3.177 
[ 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 15.9   n/a MPO433969  

305493 (2008 EQ40)          Discovered 2008-Mar-04 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ 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
1939-Jun-23 14:40 00:04 Jupiter 1.60885320929696 1.60885179443732 1.60885462417406 2.34817046790212 2.11209674346233 2429438.111107728 4.21491953669613 373.258949806345 44.5075651718756 -84.3478505844415 939902.122517007 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:08:19 2019-May-30 09:08
1949-Jun-28 09:39 00:04 Jupiter 1.67248561803966 1.67248412998123 1.67248710614723 1.36547149929639 0.922833556637087 2433095.902361720 3.80218013912176 1154.97577621606 126.560419226231 36.3096230948713 2355720.24181349 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:08:19 2019-May-30 09:08
2011-Nov-04 08:08 < 00:01 Jupiter 1.89732202955398 1.89732097176375 1.89732308734409 3.97751872219579 3.86365035773995 2455869.839162266 0.45715019747206 61.5826484550396 38.3857675173327 57.8597104405179 1608376.44118468 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:08:19 2019-May-30 09:08
2022-Jan-01 18:44 < 00:01 Jupiter 1.54718580785935 1.54718500497537 1.54718661074175 1.69738454532353 1.33648571653594 2459581.280356303 0.814847211194999 179.748048808961 158.061249299158 -5.38989837706804 815394.669619897 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:08:19 2019-May-30 09:08
2032-Jan-02 11:01 00:01 Jupiter 1.80815477360346 1.80815343139128 1.80815611581389 2.10724365379239 1.8717863685283 2463233.958813624 1.38531403415112 125.940779031769 41.5381655938635 87.643929311461 775497.96301689 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:08:19 2019-May-30 09:08
2094-May-29 17:21 00:04 Jupiter 1.72517927935041 1.72517652150697 1.72518203721856 3.26285507078164 3.10874093107942 2486027.222709752 4.46797676333707 379.51257725388 33.177863562839 74.9908434196177 1338096.7234596 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:08:19 2019-May-30 09:08
2104-Jul-08 15:12 00:06 Jupiter 1.57332392418654 1.57332237205974 1.57332547634285 1.21248119876129 0.627200670470812 2489719.133107632 5.74433505772586 3084.7665496079 274.459692647111 11.1970288492667 1048544.50639853 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:08:19 2019-May-30 09:08
2114-Jul-20 00:33 00:06 Jupiter 1.97442268237762 1.97441912166714 1.97442624309438 2.9524716142577 2.80340748203013 2493382.522851002 5.73682309543268 283.855944606189 44.5578699067638 70.541951748102 771301.989657247 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:08:19 2019-May-30 09:08
2176-Dec-16 19:43 00:09 Jupiter 1.58488002452507 1.58487680206341 1.58488324714645 2.63033844047275 2.4186362430444 2516178.321495717 9.09237043067855 878.140244671903 32.9426079126439 87.7627359965636 1089804.84386646 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:08:19 2019-May-30 09:08
2187-Jan-07 00:27 00:11 Jupiter 1.66342308488669 1.6634184709974 1.66342769873474 1.1800762116868 0.6116950798415 2519851.518609207 11.0212032962961 4829.24284814207 316.229161050444 10.3792213810447 639457.075276711 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:08:19 2019-May-30 09:08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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