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24631 (1981 EB21)
Classification: Main-belt Asteroid          SPK-ID: 2024631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1619476299180757 3.405e-08  
a 3.104879065504765 1.7642e-08 au
q 2.602051259664019 1.0233e-07 au
i 2.220511318526922 3.8109e-06 deg
node 298.0240480172232 0.00011679 deg
peri 162.5160923089136 0.00011768 deg
M 200.5741815501375 1.6012e-05 deg
tp 2460281.455871469720
(2023-Dec-02.95587147)
9.31e-05 TDB
period 1998.321958304954
5.47
1.7032e-05
4.663e-08
d
yr
n .1801511505710344 1.5354e-09 deg/d
Q 3.607706871345511 2.0499e-08 au
  Orbit Determination Parameters
   # obs. used (total)      921  
   data-arc span      15200 days (41.62 yr)  
   first obs. used      1979-11-22  
   last obs. used      2021-07-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5242  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:17:48  

Additional Information
 Earth MOID = 1.61925 au 
 Jupiter MOID = 1.55255 au 
 T_jup = 3.199 
[ 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 14.68   n/a E2021B10  

24631 (1981 EB21)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

[ 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
1900-Aug-08 16:12 00:03 Jupiter 1.81843641366661 1.81843470557102 1.81843812176085 2.02009226611012 1.77459247439891 2415240.175286075 3.26681731217398 75.783722642651 15.7557963460347 76.3574114746443 1308348.98871702 T 18 CATAB v2.0g-lin.ifort 2021-Jul-09 10:17:51 2021-Jul-09 10:17
1951-Aug-17 22:29 00:02 Jupiter 1.91623017651138 1.9162290497946 1.91623130322837 3.24242958327583 3.10311113194927 2433876.436722868 1.77346370517683 79.1106751386308 24.543896992277 66.4880806236941 1922492.12339763 T 18 CATAB v2.0g-lin.ifort 2021-Jul-09 10:17:51 2021-Jul-09 10:17
1961-Jul-13 21:29 00:02 Jupiter 1.55799857631563 1.55799819099903 1.55799896163293 1.57701227621693 1.18306653619107 2437494.395213682 1.5279593150163 151.067678632511 60.7865991156038 54.2894633755516 2726716.29593533 T 18 CATAB v2.0g-lin.ifort 2021-Jul-09 10:17:51 2021-Jul-09 10:17
1971-Jun-21 05:34 00:01 Jupiter 1.92607743503747 1.92607666906263 1.9260782010122 2.35908952535783 2.16466447278929 2441123.732243013 1.20877629113955 52.8546939723091 12.0722218344663 74.0904026836533 2178430.08584791 T 18 CATAB v2.0g-lin.ifort 2021-Jul-09 10:17:51 2021-Jul-09 10:17
2022-Jun-30 11:54 < 00:01 Jupiter 1.81314653838082 1.81314608881506 1.81314698794659 2.68929365707633 2.50957927226206 2459760.995531090 0.287951427564765 44.1721596468632 9.89897602329549 -82.4203616495246 2735259.8557759 T 18 CATAB v2.0g-lin.ifort 2021-Jul-09 10:17:51 2021-Jul-09 10:17
2032-May-24 13:16 < 00:01 Jupiter 1.57156347875149 1.57156307590187 1.57156388160174 1.56796774208668 1.17498371505054 2463377.052705176 0.545093897972848 145.474477470653 53.7442512387097 54.440077231338 3201224.24416976 T 18 CATAB v2.0g-lin.ifort 2021-Jul-09 10:17:51 2021-Jul-09 10:17
2093-May-08 18:55 00:02 Jupiter 1.71480178468917 1.71480079072353 1.71480277865461 2.21054475006201 1.97449045566243 2485641.288238940 2.32357397193297 90.9061910755334 10.0183144379232 -87.6867775225896 1543873.28097699 T 18 CATAB v2.0g-lin.ifort 2021-Jul-09 10:17:51 2021-Jul-09 10:17
2103-Apr-05 02:07 00:03 Jupiter 1.62274769312826 1.62274666120784 1.62274872504785 1.65316571876162 1.2996232981694 2489258.588263879 2.54695817557498 108.805567878957 44.4953355489037 56.4035879949399 1849104.87588615 T 18 CATAB v2.0g-lin.ifort 2021-Jul-09 10:17:51 2021-Jul-09 10:17
2164-Mar-16 08:32 00:04 Jupiter 1.63311261639074 1.63311121575568 1.6331140170244 1.85332012695034 1.54838137952486 2511519.855886311 4.36031642691196 134.700350303553 44.4857498830089 -68.1930074402293 1085345.18343215 T 18 CATAB v2.0g-lin.ifort 2021-Jul-09 10:17:51 2021-Jul-09 10:17
2174-Feb-13 12:26 00:05 Jupiter 1.69796331857846 1.69796111313627 1.69796552401601 1.81801590810455 1.51904229268896 2515141.018183949 4.51895132219998 63.9129790271638 35.9585862288013 74.9596846384359 711743.065336823 T 18 CATAB v2.0g-lin.ifort 2021-Jul-09 10:17:51 2021-Jul-09 10:17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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