MPEC 2018-F139: A/2018 F4
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M.P.E.C. 2018-F139 Issued 2018 Mar. 28, 15:15 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
A/2018 F4
Observations:
AK18F040* C2018 03 17.52809 13 59 39.365-09 09 37.62 20.4 wUEF139F51
AK18F040 C2018 03 17.53881 13 59 38.996-09 09 38.70 20.5 wUEF139F51
AK18F040 C2018 03 17.54956 13 59 38.621-09 09 39.19 20.4 wUEF139F51
AK18F040 C2018 03 17.56485 13 59 38.089-09 09 40.26 20.8 wUEF139F51
AK18F040 C2018 03 17.57731 13 59 37.667-09 09 40.96 20.7 wUEF139F51
AK18F040 C2018 03 17.58975 13 59 37.253-09 09 41.87 20.9 wUEF139F51
AK18F040 C2018 03 17.60213 13 59 36.803-09 09 42.56 20.6 wUEF139F51
AK18F040 |C2018 03 18.27111 13 59 13.98 -09 10 25.2 19.8 GUEF139807
AK18F040 |C2018 03 18.27447 13 59 13.86 -09 10 25.5 20.5 GUEF139807
AK18F040 |C2018 03 18.27769 13 59 13.74 -09 10 25.6 20.1 GUEF139807
AK18F040 ^C2018 03 18.45137 13 59 07.760-09 10 38.33 19.6 GUEF139568
AK18F040 ^C2018 03 18.45254 13 59 07.717-09 10 38.41 19.6 GUEF139568
AK18F040 ^C2018 03 18.45372 13 59 07.674-09 10 38.51 19.5 GUEF139568
AK18F040 KC2018 03 19.25689 13 58 39.73 -09 11 29.0 19.6 RqEF139W96
AK18F040 KC2018 03 19.28911 13 58 38.58 -09 11 31.1 19.6 RqEF139W96
AK18F040 KC2018 03 19.32132 13 58 37.36 -09 11 33.0 19.4 RqEF139W96
AK18F040 KC2018 03 20.36435 13 58 00.50 -09 12 40.4 oEF139711
AK18F040 KC2018 03 20.36771 13 58 00.37 -09 12 40.7 oEF139711
AK18F040 KC2018 03 20.37113 13 58 00.28 -09 12 40.7 oEF139711
AK18F040 C2018 03 20.42484 13 57 58.37 -09 12 43.9 19.6 GUEF139I52
AK18F040 C2018 03 20.43098 13 57 58.18 -09 12 44.8 19.2 GUEF139I52
AK18F040 C2018 03 20.43714 13 57 57.94 -09 12 44.9 19.5 GUEF139I52
AK18F040 C2018 03 20.44810 13 57 57.47 -09 12 45.6 19.7 GUEF139I52
AK18F040 KC2018 03 21.36373 13 57 24.48 -09 13 40.2 oEF139711
AK18F040 KC2018 03 21.36673 13 57 24.32 -09 13 40.3 oEF139711
AK18F040 KC2018 03 21.36980 13 57 24.19 -09 13 40.8 oEF139711
AK18F040 C2018 03 21.41113 13 57 22.85 -09 13 44.0 18.9 GUEF139I52
AK18F040 C2018 03 21.41447 13 57 22.72 -09 13 45.2 19.4 GUEF139G96
AK18F040 C2018 03 21.41687 13 57 22.58 -09 13 45.0 19.8 GUEF139I52
AK18F040 C2018 03 21.42122 13 57 22.45 -09 13 45.1 19.3 GUEF139G96
AK18F040 C2018 03 21.42323 13 57 22.40 -09 13 45.0 20.1 GUEF139I52
AK18F040 C2018 03 21.42637 13 57 22.28 -09 13 45.5 19.5 GUEF139G96
AK18F040 C2018 03 21.42948 13 57 22.15 -09 13 45.6 19.1 GUEF139I52
AK18F040 C2018 03 21.43153 13 57 22.10 -09 13 45.9 19.5 GUEF139G96
AK18F040 HC2018 03 21.43580 13 57 21.93 -09 13 45.7 19.6 RoEF139691
AK18F040 HC2018 03 21.44966 13 57 21.47 -09 13 47.2 19.1 RoEF139691
AK18F040 HC2018 03 21.46335 13 57 20.93 -09 13 47.4 19.4 RoEF139691
AK18F040 9C2018 03 22.09083 13 56 58.02 -09 14 25.2 19.6 VUEF139G40
AK18F040 9C2018 03 22.09917 13 56 57.78 -09 14 25.7 19.6 VUEF139G40
AK18F040 KC2018 03 22.10888 13 56 57.30 -09 14 26.6 19.3 RqEF139A77
AK18F040 KC2018 03 22.13058 13 56 56.51 -09 14 28.0 19.4 RqEF139A77
AK18F040 KC2018 03 22.15228 13 56 55.69 -09 14 29.0 19.3 RqEF139A77
AK18F040 _C2018 03 22.53708913 56 41.592-09 14 51.59 19.6 GUEF139568
AK18F040 _C2018 03 22.53826513 56 41.544-09 14 51.70 19.7 GUEF139568
AK18F040 1C2018 03 24.77469 13 55 17.61 -09 16 58.9 vEF139Q62
AK18F040 1C2018 03 24.77786 13 55 17.48 -09 16 59.2 vEF139Q62
AK18F040 1C2018 03 24.78102 13 55 17.34 -09 16 59.0 19.4 wvEF139Q62
AK18F040 FC2018 03 25.92594 13 54 33.45 -09 18 02.7 qEF139246
AK18F040 FC2018 03 25.92812 13 54 33.38 -09 18 03.5 qEF139246
AK18F040 FC2018 03 25.92920 13 54 33.27 -09 18 04.6 19.6 RqEF139246
AK18F040 FC2018 03 25.93093 13 54 33.22 -09 18 05.9 qEF139246
AK18F040 KC2018 03 26.59348 13 54 07.46 -09 18 38.1 20.0 VqEF139E23
AK18F040 KC2018 03 26.60737 13 54 06.89 -09 18 39.1 20.3 VqEF139E23
AK18F040 KC2018 03 26.62126 13 54 06.33 -09 18 39.1 19.5 VqEF139E23
AK18F040 HC2018 03 27.31816 13 53 38.96 -09 19 19.3 19.0 RoEF139691
AK18F040 HC2018 03 27.32180 13 53 38.88 -09 19 19.2 19.1 RoEF139691
AK18F040 HC2018 03 27.32543 13 53 38.77 -09 19 19.5 19.1 RoEF139691
AK18F040 dC2018 03 27.35741 13 53 37.45 -09 19 21.5 19.6 RoEF139291
AK18F040 dC2018 03 27.36798 13 53 37.02 -09 19 21.8 19.7 RoEF139291
AK18F040 dC2018 03 27.37855 13 53 36.60 -09 19 22.5 19.7 RoEF139291
AK18F040 ^C2018 03 28.31767 13 52 59.35 -09 20 11.6 20.4 RoEF139695
AK18F040 ^C2018 03 28.32612 13 52 59.01 -09 20 12.1 20.2 RoEF139695
AK18F040 ^C2018 03 28.33456 13 52 58.67 -09 20 12.4 20.1 RoEF139695
AK18F040 C2018 03 28.38595 13 52 56.56 -09 20 14.5 20.2 GUEF139I52
AK18F040 C2018 03 28.39165 13 52 56.33 -09 20 15.8 18.6 GUEF139I52
AK18F040 C2018 03 28.39696 13 52 56.13 -09 20 16.5 20.1 GUEF139I52
Observer details:
246 Klet Observatory-KLENOT. Observers M. Tichy, J. Ticha. Measurer M. Tichy.
1.06-m KLENOT Telescope + CCD.
291 LPL/Spacewatch II. Observer R. S. McMillan. 1.8-m f/2.7 reflector + CCD.
568 Mauna Kea. Observers R. Wainscoat, D. Woodworth, T. Burdullis, K. Meech,
J. Kleyna, R. J. Wainscoat, R. Weryk. Measurers R. Weryk, R. Wainscoat,
M. Micheli, J. Kleyna. 3.6-m Canada-France-Hawaii Telescope + CCD.
691 Steward Observatory, Kitt Peak. Observers A. F. Tubbiolo, R. S. McMillan.
Measurers A. F. Tubbiolo, M. T. Read. 0.9-m f/3 reflector + CCD.
695 Kitt Peak. Observer R. S. McMillan. 2.3-m f/9 reflector + CCD.
711 McDonald Observatory. Observer J. G. Ries. 2.1-m reflector + CCD + focal
reducer.
807 Cerro Tololo. Observers T. Linder, R. Holmes. 0.61-m f/6.5 astrograph
+ CCD.
A77 Observatoire Chante-Perdrix, Dauban. Observer J.-F. Soulier. 0.20-m f/4
Newtonian reflector + CCD.
E23 Arcadia. Observer A. Hidas. 0.35-m f/1.9 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz,
M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
M. Huber, E. Magnier, Y. Ramanjooloo, R. Wainscoat, C. Waters, R. Weryk.
1.8-m Ritchey-Chretien + CCD.
G40 Slooh.com Canary Islands Observatory. Observer B. Lutkenhoner. 0.43-m
f/6.8 Corrected Dall-Kirkham + CCD.
G96 Mt. Lemmon Survey. Observer G. J. Leonard. Measurers B. M. Africano,
E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly.
1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers R. A. Kowalski,
B. M. Africano, E. J. Christensen. Measurers B. M. Africano,
E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly.
1.0-m reflector + CCD.
Q62 iTelescope Observatory, Siding Spring. Observer H. Sato. 0.51-m f/6.8
astrograph + CCD + f/4.5 focal reducer.
W96 CAO, San Pedro de Atacama (since 2013). Observers A. Maury, J.-B. de
Vanssay, J.-F. Soulier. Measurer J.-F. Soulier. 0.4-m f/5.2
Ritchey-Chretien + CCD.
Orbital elements:
A/2018 F4
Epoch 2019 Nov. 13.0 TT = JDT 2458800.5
T 2019 Nov. 25.57222 TT MPCW
q 3.4192734 (2000.0) P Q
z -0.0105850 Peri. 262.91426 -0.02353322 +0.89889236
+/-0.0090145 Node 26.50054 +0.17673497 +0.43450575
e 1.0361930 Incl. 78.68736 -0.98397710 +0.05654454
H 11.9
From 66 observations 2018 Mar. 17-28, mean residual 0".5.
A/2018 F4
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5
T 2019 Nov. 25.68625 TT MPCW
q 3.4214274 (2000.0) P Q
z -0.0102870 Peri. 262.87315 -0.02467643 +0.89872347
+/-0.0090145 Node 26.51194 +0.17751561 +0.43493368
e 1.0351962 Incl. 78.75910 -0.98380856 +0.05593591
H 11.9
From 66 observations 2018 Mar. 17-28, mean residual 0".5.
Ephemeris:
A/2018 F4
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2018 02 26 14 08 37.7 -08 42 41 5.9556 6.5610 124.0 7.2 20.4
...
2018 03 13 14 02 06.9 -09 04 20 5.6629 6.4600 140.4 5.6 20.2
...
2018 03 21 13 57 37.7 -09 13 18 5.5289 6.4061 149.4 4.5 20.0
...
2018 03 27 13 53 51.5 -09 19 01 5.4404 6.3658 156.2 3.6 19.9
2018 03 28 13 53 12.0 -09 19 54 5.4267 6.3591 157.3 3.5 19.9
2018 03 29 13 52 32.0 -09 20 45 5.4133 6.3524 158.5 3.3 19.9
...
2018 04 04 13 48 22.8 -09 25 33 5.3397 6.3121 165.3 2.3 19.8
...
2018 04 12 13 42 30.3 -09 31 11 5.2599 6.2584 174.5 0.9 19.6
...
2018 04 27 13 30 58.8 -09 40 54 5.1693 6.1578 168.2 1.9 19.6
Gareth V. Williams (C) Copyright 2018 MPC M.P.E.C. 2018-F139
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