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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02393713793723027 5.4877e-08  
a 3.927573784288129 4.4605e-08 au
q 3.833558908854974 2.2346e-07 au
i 1.722727763482923 6.014e-06 deg
node 221.5095197136428 0.00017033 deg
peri 179.3332663812987 0.00020463 deg
M 156.3546745438041 0.00011106 deg
tp 2457765.709371244473
(2017-Jan-12.20937124)
0.00088031 TDB
period 2843.052998888448
7.78
4.8432e-05
1.326e-07
d
yr
n .1266244421545253 2.1571e-09 deg/d
Q 4.021588659721283 4.5672e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1127  
   data-arc span      15143 days (41.46 yr)  
   first obs. used      1977-10-18  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55845  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:19:09  

Additional Information
 Earth MOID = 2.84085 au 
 Jupiter MOID = 1.12014 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 13.1   n/a MPO431699  
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 11:18 00:04 Jupiter 1.42737534219632 1.42737445806668 1.42737622632578 2.70242889140586 2.47311477880689 2420053.970844600 4.47475736054453 74.3824927161483 26.5860659724431 -78.7745522559333 1897272.71875928 T 16 CATAB v2.0e-lin.ifort 2019-Jul-12 22:19:14 2019-Jul-12 22:19
1936-May-04 04:53 00:04 Jupiter 1.49820899093893 1.49820826510067 1.49820971677744 2.78168497095704 2.57041977983495 2428292.703674980 3.83701974686805 93.0692971515978 22.8670453241771 81.2451062431964 2498156.61055978 T 16 CATAB v2.0e-lin.ifort 2019-Jul-12 22:19:14 2019-Jul-12 22:19
1958-Oct-25 05:10 00:03 Jupiter 1.52196101599799 1.52196042341556 1.5219616085805 2.67527494759818 2.45846064641138 2436501.715498313 3.0964561566004 99.7713458461258 17.481777252922 84.7705986243713 2513750.60640871 T 16 CATAB v2.0e-lin.ifort 2019-Jul-12 22:19:14 2019-Jul-12 22:19
1981-Apr-15 17:01 00:02 Jupiter 1.4923337037827 1.49233298925945 1.49233441830562 2.45735774367763 2.21437170586981 2444710.209292320 2.08038746115673 84.1726021139436 16.2911575586232 -89.6486860050812 1936593.76087828 T 16 CATAB v2.0e-lin.ifort 2019-Jul-12 22:19:14 2019-Jul-12 22:19
2003-Nov-09 13:10 < 00:01 Jupiter 1.42439890326465 1.42439815924785 1.42439964728105 2.27384784649094 1.99526409846139 2452953.048423813 0.770710331176166 68.2960488588557 10.6104106811237 83.7572628239011 1832182.24505163 T 16 CATAB v2.0e-lin.ifort 2019-Jul-12 22:19:14 2019-Jul-12 22:19
2026-Aug-12 09:26 00:01 Jupiter 1.35702892415563 1.35702834265927 1.35702950565192 2.21525902227637 1.91285755576176 2461264.892776614 1.15983452917565 78.6012844560606 9.49281218464428 82.8935016328958 2217795.44638876 T 16 CATAB v2.0e-lin.ifort 2019-Jul-12 22:19:14 2019-Jul-12 22:19
2049-Jul-15 16:35 00:03 Jupiter 1.31220033925904 1.31219988049491 1.31220079802324 2.26214755584941 1.95609709291928 2469638.190755723 2.90928411001145 81.0953626936314 15.8768991673765 84.1451500461234 2683857.71514642 T 16 CATAB v2.0e-lin.ifort 2019-Jul-12 22:19:14 2019-Jul-12 22:19
2072-Jul-14 13:42 00:05 Jupiter 1.31258959553706 1.31258912082811 1.31259007024601 2.42269612054928 2.13982326782001 2478038.071093867 4.83129733665454 112.916014634502 14.8611843145093 83.5498699095097 2543918.12315521 T 16 CATAB v2.0e-lin.ifort 2019-Jul-12 22:19:14 2019-Jul-12 22:19
2095-Jun-16 04:32 00:07 Jupiter 1.34739555275866 1.34739491112786 1.3473961943903 2.66511291469156 2.41775787014284 2486409.688812124 6.95029735633708 207.056256654189 18.369309193944 89.8026089074029 2190763.64340955 T 16 CATAB v2.0e-lin.ifort 2019-Jul-12 22:19:14 2019-Jul-12 22:19
2118-Mar-18 12:28 00:09 Jupiter 1.41000544582977 1.41000464191472 1.41000624975348 2.93854727769827 2.72646554472385 2494720.019153249 9.0069211102601 325.290314281694 22.5318377272447 -86.7076648836418 2163233.68867157 T 16 CATAB v2.0e-lin.ifort 2019-Jul-12 22:19:14 2019-Jul-12 22:19
2140-Oct-23 16:49 00:11 Jupiter 1.47086695365566 1.47086640368286 1.47086750363147 3.082301501848 2.88943769839041 2502975.200811750 10.6477356777895 370.976860919457 18.75173001697 -87.4104392001178 2877460.59061407 T 16 CATAB v2.0e-lin.ifort 2019-Jul-12 22:19:14 2019-Jul-12 22:19
2163-Apr-30 04:23 00:12 Jupiter 1.50212259821188 1.50212194535291 1.50212325107513 3.00004757581712 2.8058007711867 2511198.682421332 11.6899056100538 198.422377490895 15.9243391467441 89.8346736746674 2888907.99854425 T 16 CATAB v2.0e-lin.ifort 2019-Jul-12 22:19:14 2019-Jul-12 22:19
2185-Nov-06 15:50 00:12 Jupiter 1.46762383248803 1.46762275156301 1.46762491341479 2.68805304820392 2.46401131959513 2519425.159724168 12.2304573661601 129.81337280952 14.9822070360551 -84.9490021376022 1510415.24397235 T 16 CATAB v2.0e-lin.ifort 2019-Jul-12 22:19:14 2019-Jul-12 22:19

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