MPEC 2019-E89 : 2016 EL56
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M.P.E.C. 2019-E89 Issued 2019 Mar. 12, 21:44 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2016 EL56
Revision to MPEC 2016-E91
Additional Observations:
K16E56L |C2019 03 02.23232 13 54 36.64 -24 03 12.5 22.2 GUEE089807
K16E56L |C2019 03 02.24756 13 54 33.69 -24 03 08.2 22.2 GUEE089807
K16E56L |C2019 03 02.26280 13 54 30.73 -24 03 03.9 22.4 GUEE089807
K16E56L |C2019 03 08.30588 13 34 48.29 -23 20 55.3 22.1 GUEE089807
K16E56L |C2019 03 08.31421 13 34 46.57 -23 20 50.3 22.2 GUEE089807
K16E56L |C2019 03 08.32275 13 34 44.84 -23 20 46.3 22.2 GUEE089807
Observer details:
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
1.00-m f/10.0 astrograph + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
190302 807 18.4- 8.2- 190308 807 69.8- 6.1+ MPO377914 +0.14 day
Orbital elements:
2016 EL56 PHA, Earth MOID = 0.0406 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 46.63174 (2000.0) P Q
n 0.34122395 Peri. 70.19279 +0.70132553 -0.70783151
a 2.0281950 Node 334.63585 +0.55783590 +0.61864830
e 0.8559383 Incl. 11.35800 +0.44380358 +0.34095282
P 2.89 H 21.1 G 0.15 U 3
Residuals in seconds of arc
160306 T05 0.2- 0.1- 160309 926 0.9+ 0.6- 160318 H21 0.5+ 0.1-
160306 T05 0.1+ 0.1- 160310 W88 0.2+ 0.0 160319 807 0.1- 0.5-
160306 T05 0.4- 0.8- 160310 W88 0.1- 0.1- 160319 807 0.0 0.4-
160306 T05 0.3- 0.1- 160310 474 0.0 0.1+ 160319 807 0.0 0.3-
160307 Q64 0.1- 0.3+ 160310 474 0.1+ 0.0 160320 807 0.5- 0.4-
160307 Q64 0.1- 0.1+ 160310 474 0.2+ 0.0 160320 807 0.2- 0.4-
160307 Q64 0.1- 0.4+ 160310 474 0.2+ 0.2+ 160320 807 0.1+ 0.4-
160307 Q64 0.2- 0.3+ 160310 474 0.1+ 0.1- 160326 807 0.4- 0.3+
160307 Q64 0.2- 0.3+ 160314 807 0.2+ 0.2- 160326 807 0.2- 0.5+
160308 474 0.1- 0.3+ 160314 807 0.1- 0.2- 160326 807 0.5- 0.4+
160308 474 0.6- 0.0 160314 807 0.1+ 0.2- 160327 291 0.2- 0.2-
160308 474 0.2- 0.2- 160314 I52 0.3+ 0.1- 160327 291 0.1- 0.3+
160308 474 0.2- 0.3- 160314 I52 0.0 0.2+ 160327 291 0.1- 1.4+
160308 204 0.3- 0.3- 160314 I52 0.1+ 0.2- 160401 807 0.3- 0.2-
160309 204 0.2+ 0.2+ 160314 I52 0.3- 0.4- 160401 807 0.5- 0.3-
160309 204 0.3+ 0.0 160316 807 0.1+ 0.3- 160401 807 0.5- 0.1+
160309 807 0.2- 0.4+ 160316 807 0.0 0.3- 160405 H21 0.0 0.0
160309 807 0.1+ 0.2+ 160316 807 0.0 0.3- 160405 H21 0.2- 0.0
160309 807 0.1- 0.2+ 160316 807 0.1+ 0.3- 160405 H21 0.1+ 0.1+
160309 807 0.0 0.4+ 160316 807 0.1- 0.2- 190302 807 0.7+ 0.4-
160309 807 0.2- 0.1+ 160316 G45 0.2+ 0.0 190302 807 0.7+ 0.5-
160309 807 0.1- 0.3+ 160316 G45 0.3+ 0.2- 190302 807 0.7+ 0.6-
160309 926 0.2+ 0.0 160316 G45 0.1+ 0.3- 190308 807 0.0 0.3-
160309 926 0.1+ 0.6+ 160316 G45 0.0 0.1+ 190308 807 0.3- 0.3+
160309 926 0.5+ 0.1- 160316 G45 0.0 0.2- 190308 807 0.1- 0.3-
160309 926 0.3- 0.0 160318 H21 0.4+ 0.4-
160309 926 1.1+ 0.1- 160318 H21 0.3+ 0.1-
Ephemeris:
2016 EL56 a,e,i = 2.03, 0.86, 11 q = 0.2922
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2019 02 10 14 47 55.9 -23 54 14 0.7829 1.3007 93.9 49.2 23.0
...
2019 02 25 14 10 34.6 -24 21 16 0.7797 1.5096 116.6 35.9 22.9
...
2019 03 05 13 45 42.6 -23 46 52 0.7878 1.6130 129.7 28.2 22.9
...
2019 03 11 13 25 48.7 -22 54 51 0.8031 1.6874 139.7 22.4 22.8
2019 03 12 13 22 27.8 -22 44 04 0.8066 1.6996 141.3 21.4 22.8
2019 03 13 13 19 07.2 -22 32 43 0.8104 1.7117 143.0 20.5 22.8
...
2019 03 19 12 59 24.1 -21 14 00 0.8398 1.7827 152.5 15.0 22.8
...
2019 03 27 12 35 08.8 -19 08 46 0.8975 1.8739 162.8 9.1 22.8
...
2019 04 11 12 00 11.4 -15 03 13 1.0635 2.0346 160.2 9.6 23.4
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-E89
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