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17397 (1981 EF48)
Classification: Outer Main-belt Asteroid          SPK-ID: 2017397
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02416276469459011 5.1752e-08  
a 3.926608688469301 3.5205e-08 au
q 3.831730966682084 2.0724e-07 au
i 1.722979190766002 5.6363e-06 deg
node 221.5073062762071 0.00014723 deg
peri 178.9670839491685 0.00017409 deg
M 182.0654121243818 9.3544e-05 deg
tp 2460605.197267809658
(2024-Oct-21.69726781)
0.00074301 TDB
period 2842.00515733889
7.78
3.8221e-05
1.046e-07
d
yr
n .1266711283300717 1.7035e-09 deg/d
Q 4.021486410256518 3.6055e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1289  
   data-arc span      15861 days (43.43 yr)  
   first obs. used      1977-10-18  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53521  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:32:41  

Additional Information
 Earth MOID = 2.83779 au 
 Jupiter MOID = 1.12113 au 
 T_jup = 3.061 
[ 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 13.11   n/a E2021B10  
diameter diameter 13.225 km 0.379 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.070   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

17397 (1981 EF48)          Discovered 1981-Mar-06 by Bus, S. J. at Siding Spring
Reference: 20001013/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
1913-Oct-13 11:17 00:04 Jupiter 1.42737522189173 1.42737452215995 1.42737592162351 2.70242806977016 2.47311386208882 2420053.970187986 4.37381375815132 70.1281651419989 21.6596451004187 -79.4465297922511 2560697.03024204 T 20 CATAB v2.0g-lin.ifort 2021-May-04 02:32:46 2021-May-04 02:32
1936-May-04 04:53 00:04 Jupiter 1.49820878680731 1.49820826245703 1.49820931115794 2.78168366175359 2.57041833427391 2428292.703187315 3.68044054442271 87.3007765242679 16.7976139037069 82.3688434345044 3526246.52138157 T 20 CATAB v2.0g-lin.ifort 2021-May-04 02:32:46 2021-May-04 02:32
1958-Oct-25 05:10 00:03 Jupiter 1.52196082751933 1.52196030166627 1.52196135337239 2.67527395934069 2.4584595442148 2436501.715190134 2.89747018433063 91.6236011644554 15.741485783426 85.4987853264102 2750935.3787834 T 20 CATAB v2.0g-lin.ifort 2021-May-04 02:32:46 2021-May-04 02:32
1981-Apr-15 17:01 00:02 Jupiter 1.49233362459493 1.49233296878957 1.49233428040004 2.45735761444112 2.21437155026699 2444710.209100069 1.9172452695947 77.1639485071487 14.7054185888665 -89.3951001174819 2095791.85989956 T 20 CATAB v2.0g-lin.ifort 2021-May-04 02:32:46 2021-May-04 02:32
2003-Nov-09 13:09 < 00:01 Jupiter 1.42439896701798 1.42439833836985 1.42439959566579 2.27384844893104 1.99526480000141 2452953.048221486 0.752346367301311 62.9616645318186 9.34232872781408 84.2432158365741 2145786.15189374 T 20 CATAB v2.0g-lin.ifort 2021-May-04 02:32:46 2021-May-04 02:32
2026-Aug-12 09:25 < 00:01 Jupiter 1.35702906830052 1.35702856417708 1.35702957242389 2.21525983127597 1.91285852911809 2461264.892419538 0.823019751837487 72.2973512963564 7.73815395218437 82.0761624860315 2667655.41295767 T 20 CATAB v2.0g-lin.ifort 2021-May-04 02:32:46 2021-May-04 02:32
2049-Jul-15 16:34 00:02 Jupiter 1.31220048210299 1.31220003454371 1.31220092966226 2.26214826355717 1.9560979491002 2469638.190148358 2.27626667327063 76.4290246473706 12.9439323573797 84.4708691749014 3146030.80421163 T 20 CATAB v2.0g-lin.ifort 2021-May-04 02:32:46 2021-May-04 02:32
2072-Jul-14 13:41 00:04 Jupiter 1.31258969548577 1.31258923819968 1.31259015277187 2.42269658809541 2.13982382180252 2478038.070262035 4.05851535481578 99.4058933448772 13.2677179668755 84.5213537584834 2670416.43696675 T 20 CATAB v2.0g-lin.ifort 2021-May-04 02:32:46 2021-May-04 02:32
2095-Jun-16 04:30 00:06 Jupiter 1.34739557863111 1.34739500000684 1.34739615725698 2.66511298176784 2.41775795051053 2486409.687823020 6.16467456508087 184.03746422421 15.3888012805537 -89.3620796543989 2489929.67010434 T 20 CATAB v2.0g-lin.ifort 2021-May-04 02:32:46 2021-May-04 02:32
2118-Mar-18 12:26 00:08 Jupiter 1.41000533545021 1.41000461931489 1.41000605159795 2.93854668028977 2.72646488481416 2494720.018115703 8.24142363175813 297.23599327941 16.6474120595688 -85.988648941281 2905853.93475736 T 20 CATAB v2.0g-lin.ifort 2021-May-04 02:32:46 2021-May-04 02:32
2140-Oct-23 16:48 00:10 Jupiter 1.47086667568357 1.4708662343583 1.47086711701805 3.08230018830947 2.88943626061209 2502975.199923709 9.89394332957099 343.695071541819 13.1136138413819 -86.8605863523456 4084500.48407923 T 20 CATAB v2.0g-lin.ifort 2021-May-04 02:32:46 2021-May-04 02:32
2163-Apr-30 04:22 00:11 Jupiter 1.50212230765749 1.50212172473359 1.50212289058463 3.0000462831685 2.80579935128401 2511198.681761017 10.9401584806767 184.640303343512 14.7675535750621 -89.7030533289573 3103335.88694337 T 20 CATAB v2.0g-lin.ifort 2021-May-04 02:32:46 2021-May-04 02:32
2185-Nov-06 15:49 00:11 Jupiter 1.46762374795233 1.46762272281168 1.46762477309457 2.68805240136387 2.46401060174309 2519425.159249689 11.4644677316379 122.002934304263 13.2661440895472 -84.7292863478583 1621936.05412437 T 20 CATAB v2.0g-lin.ifort 2021-May-04 02:32:46 2021-May-04 02:32

Alternate Designations
 1981 EF48 = 1977 UQ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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