MPEC 2018-P82 : 2017 KZ4
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M.P.E.C. 2018-P82 Issued 2018 Aug. 13, 11:44 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
2017 KZ4
Revision to MPEC 2017-K46
Additional Observations:
K17K04Z C2018 08 08.24250318 48 26.794+16 09 11.99 23.95GVEP082T14
K17K04Z C2018 08 08.24514218 48 26.520+16 09 10.72 23.99GVEP082T14
K17K04Z C2018 08 08.24771118 48 26.248+16 09 09.47 24.20GVEP082T14
K17K04Z C2018 08 08.25060818 48 25.950+16 09 08.15 24.17GVEP082T14
K17K04Z C2018 08 08.25319418 48 25.674+16 09 06.91 23.90GVEP082T14
K17K04Z C2018 08 08.25575918 48 25.404+16 09 05.73 23.99GVEP082T14
K17K04Z KC2018 08 11.33075818 43 16.506+15 43 02.05 23.75GVEP082T14
K17K04Z C2018 08 11.33589118 43 15.987+15 42 59.32 23.82GVEP082T14
Observer details:
T14 Mauna Kea-UH/Tholen NEO Follow-Up (CFHT). Observers D. Woodworth,
L. Wells. Measurer D. J. Tholen. 3.6-m f/4.1 reflector + MegaCam.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
180808 T14 69.4+ 63.6+ 180811 T14 64.7+ 63.6+ MPO413700 -0.15 day
Orbital elements:
2017 KZ4 PHA, Earth MOID = 0.0432 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 200.80413 (2000.0) P Q
n 0.51752145 Peri. 230.10703 -0.14313862 -0.93160432
a 1.5364455 Node 231.46702 +0.98716542 -0.11023374
e 0.7965898 Incl. 25.28398 +0.07082216 -0.34635519
P 1.90 H 20.7 G 0.15 U 3
Residuals in seconds of arc
170522 F51 0.1+ 0.0 170525 474 0.3- 0.0 170602 291 0.3+ 0.1-
170522 F51 0.0 0.1+ 170525 474 0.5+ 0.0 170603 H21 0.3+ 0.0
170522 F51 0.1+ 0.1- 170525 474 0.1+ 0.0 170603 H21 0.1+ 0.2+
170522 F51 0.1- 0.2- 170525 474 0.2- 0.2- 170603 291 0.3+ 0.2+
170523 926 0.0 0.2+ 170526 I52 0.0 0.0 170603 291 0.3+ 0.5-
170523 926 0.3+ 0.3- 170526 I52 0.0 0.0 170603 291 0.2+ 0.2+
170523 926 0.1+ 0.2+ 170526 I52 0.0 0.1- 170604 291 0.3+ 0.3-
170523 691 0.4+ 0.1+ 170526 I52 0.2+ 0.2- 170604 291 0.4- 0.0
170523 691 0.2+ 0.2+ 170527 691 0.7- 0.2+ 170604 291 0.0 0.3+
170523 691 0.3+ 0.3+ 170527 691 0.1- 0.1- 170614 695 0.0 0.1+
170523 568 0.0 0.0 170527 691 0.2+ 0.9+ 170614 695 0.2- 0.0
170523 568 0.0 0.0 170527 I52 0.1+ 0.2- 170617 291 0.1+ 0.2-
170523 568 0.0 0.0 170527 I52 0.3- 0.0 170617 291 0.0 0.0
170523 474 0.0 0.0 170529 I52 0.7- 0.8- 170617 291 0.2- 0.3+
170523 474 0.2+ 0.3- 170529 I52 0.5- 0.9+ 170621 291 0.5- 0.0
170523 474 0.1+ 0.3- 170529 I52 0.4- 0.2- 170621 291 0.2- 0.0
170524 H01 0.0 0.1- 170530 I52 (3.0- 1.0-) 170621 291 0.3+ 0.1+
170524 H01 0.1+ 0.1- 170530 I52 0.7- 0.6- 180808 T14 0.0 0.0
170524 H01 0.0 0.1- 170530 I52 0.1- 0.2+ 180808 T14 0.0 0.0
170524 H01 0.1+ 0.1- 170530 705 0.2+ 0.2- 180808 T14 0.0 0.1-
170524 691 0.7- 0.4- 170530 705 0.1- 0.4- 180808 T14 0.1+ 0.0
170524 I52 0.7- 0.4+ 170530 705 0.0 0.4- 180808 T14 0.0 0.0
170524 I52 0.3+ 0.1+ 170531 691 0.1+ 0.1- 180808 T14 0.0 0.0
170524 I52 0.3- 0.3- 170531 691 0.2- 0.0 180811 T14 0.0 0.0
170524 I52 0.2- 0.3- 170531 691 0.3+ 0.5- 180811 T14 0.1- 0.0
170524 691 0.3- 0.4+ 170602 291 0.1+ 0.3+
170524 691 0.1- 0.1- 170602 291 0.1+ 0.0
Ephemeris:
2017 KZ4 a,e,i = 1.54, 0.80, 25 q = 0.3125
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 07 14 19 35 51.2 +17 17 35 1.5051 2.3822 140.9 15.6 24.3
...
2018 07 29 19 07 09.4 +17 10 08 1.4402 2.3003 138.4 17.0 24.2
...
2018 08 06 18 52 21.6 +16 26 06 1.4290 2.2528 133.7 19.0 24.2
...
2018 08 12 18 42 11.7 +15 36 58 1.4304 2.2153 129.2 20.7 24.2
2018 08 13 18 40 36.3 +15 27 36 1.4314 2.2089 128.4 21.1 24.2
2018 08 14 18 39 02.9 +15 17 56 1.4325 2.2024 127.6 21.4 24.2
...
2018 08 20 18 30 27.3 +14 14 20 1.4433 2.1628 122.5 23.2 24.3
...
2018 08 28 18 21 10.9 +12 38 03 1.4662 2.1073 115.4 25.7 24.3
...
2018 09 12 18 10 57.0 +09 20 26 1.5259 1.9947 102.0 29.6 24.4
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