MPEC 2020-B312 : 2017 DU15
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M.P.E.C. 2020-B312 Issued 2020 January 31, 18:42 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 DU15
Revision to MPEC 2017-D30
Additional Observations:
K17D15U C2011 02 16.49397810 29 25.776-20 35 28.59 20.9 GVEB312F51
K17D15U C2011 02 16.50675410 29 21.142-20 36 17.21 20.6 GVEB312F51
K17D15U C2017 02 01.59900811 11 33.398+18 38 50.34 20.9 GVEB312F51
K17D15U C2017 02 01.61189111 11 29.353+18 38 15.84 21.4 GVEB312F51
K17D15U C2020 01 21.63686611 54 18.096+35 54 28.38 20.1 GVEB312F51
K17D15U C2020 01 21.64290311 54 16.650+35 54 22.34 20.5 GVEB312F51
K17D15U C2020 01 31.39105 11 07 54.07 +32 18 30.5 VEB312G96
K17D15U C2020 01 31.39671 11 07 52.12 +32 18 19.6 20.9 GVEB312G96
K17D15U C2020 01 31.40817 11 07 48.14 +32 17 58.5 20.9 GVEB312G96
K17D15U C2020 01 31.45938811 07 31.279+32 16 25.14 19.9 GVEB312F51
K17D15U C2020 01 31.47085611 07 27.257+32 16 04.27 20.1 GVEB312F51
K17D15U C2020 01 31.49951 11 07 16.18 +32 15 06.9 20.9 GVEB312I52
K17D15U C2020 01 31.50201 11 07 15.31 +32 15 01.3 20.8 GVEB312I52
K17D15U C2020 01 31.50628 11 07 13.87 +32 14 53.6 21.1 GVEB312I52
K17D15U C2020 01 31.51055 11 07 12.30 +32 14 44.6 21.3 GVEB312I52
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer D. Rankin. Measurers E. J. Christensen, G. A.
Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A. Kowalski,
S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L. Seaman, F. C.
Shelly, K. W. Wierzchos. 1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer R. A. Kowalski.
Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A.
Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.0-m
reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
110216 F51 3.16+ 7.72+ 200131 I52 0.91+ 3.91+ MPO399898 -2.10 days
Orbital elements:
2017 DU15 Earth MOID = 0.2279 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5 Veres
M 281.92268 (2000.0) P Q
n 0.65272110 Peri. 328.83436 +0.50398088 +0.75221574
a 1.3161871 Node 325.13747 -0.55681579 -0.09272823
e 0.0663068 Incl. 47.95229 -0.66027225 +0.65235953
P 1.51 H 20.8 G 0.15 U 3
Residuals in seconds of arc
110216 F51 0.2- 0.1- 170220 474 1.4+ 0.4+ 170228 807 0.3- 0.1-
110216 F51 0.1- 0.1- 170220 474 0.1- 0.1- 170303 807 0.3- 0.1+
170201 F51 0.1+ 0.1+ 170220 474 0.4- 0.3- 170303 807 0.0 0.1-
170201 F51 0.2- 0.1+ 170220 104 0.5- 0.1- 170304 807 0.1+ 0.1+
170218 F51 0.1+ 0.2+ 170220 104 0.2+ 0.6+ 170304 807 0.0 0.1+
170218 F51 0.2+ 0.3+ 170220 104 0.4- 0.1+ 170304 807 0.0 0.2+
170218 F51 0.1+ 0.2+ 170221 291 0.3+ 0.0 170304 I52 0.3+ 0.1-
170218 F51 0.1+ 0.2+ 170221 291 0.7+ 0.1- 170304 I52 0.1- 0.1-
170219 H36 0.0 0.6- 170221 291 0.3+ 0.0 170304 I52 0.9+ 0.6-
170219 H36 0.0 0.4- 170221 I52 0.1- 0.2- 200121 F51 0.3+ 0.3+
170219 H36 0.6+ 0.8- 170221 I52 0.0 0.2- 200121 F51 0.0 0.1-
170219 H36 0.2+ 0.4- 170221 I52 0.2- 0.2- 200131 G96 1.1- 0.6+
170219 H36 0.3- 0.6- 170223 H21 0.1- 0.2- 200131 G96 0.8- 0.2+
170219 H36 0.4- 0.3+ 170223 H21 0.3- 0.3- 200131 G96 0.4- 0.4+
170219 I93 0.0 0.0 170223 H21 0.2- 0.6- 200131 F51 0.1+ 0.3-
170219 I93 0.4+ 0.0 170226 807 0.0 0.1- 200131 F51 0.1+ 0.1-
170219 I93 0.5+ 0.0 170226 807 0.1+ 0.1- 200131 I52 0.2- 0.4+
170219 587 1.0- 0.2+ 170226 807 0.0 0.0 200131 I52 0.2- 0.4-
170219 587 0.3- 0.2+ 170228 807 0.3- 0.1+ 200131 I52 0.5+ 0.0
170220 474 0.1- 0.0 170228 807 0.3- 0.0 200131 I52 0.5- 0.9-
Ephemeris:
2017 DU15 a,e,i = 1.32, 0.07, 48 q = 1.2289
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 01 01 12 39 00.3 +39 15 48 0.7787 1.4033 105.0 42.6 22.6
...
2020 01 16 12 12 46.7 +37 06 43 0.6116 1.4014 121.2 36.9 22.0
...
2020 01 24 11 44 47.7 +35 15 15 0.5300 1.3995 132.8 31.1 21.5
...
2020 01 30 11 15 39.3 +32 59 30 0.4774 1.3977 143.4 24.8 21.1
2020 01 31 11 10 07.1 +32 30 27 0.4697 1.3973 145.4 23.6 21.0
2020 02 01 11 04 24.2 +31 59 16 0.4624 1.3970 147.4 22.4 20.9
...
2020 02 07 10 26 58.7 +28 02 16 0.4267 1.3947 160.0 14.0 20.5
...
2020 02 15 09 33 37.1 +20 35 23 0.4069 1.3911 171.4 6.1 20.0
...
2020 03 01 08 13 02.9 +04 57 53 0.4630 1.3830 141.3 26.6 21.0
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-B312
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