MPEC 2017-E31 : 2017 DR109
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M.P.E.C. 2017-E31 Issued 2017 Mar. 4, 17:14 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 DR109 Observations: K17DA9R* C2017 02 27.24563 09 55 21.95 +23 51 08.4 19.6 VqEE031703 K17DA9R C2017 02 27.25656 09 55 16.72 +23 47 11.3 19.4 VqEE031703 K17DA9R C2017 02 27.26676 09 55 11.86 +23 43 32.2 19.9 VqEE031703 K17DA9R C2017 02 27.35560509 54 29.85 +23 11 35.4 19.4 V EE031H01 K17DA9R C2017 02 27.36416009 54 26.32 +23 08 33.8 19.3 V EE031H01 K17DA9R C2017 02 27.37064709 54 23.66 +23 06 16.4 19.4 V EE031H01 K17DA9R C2017 02 27.37667109 54 21.26 +23 04 08.6 19.6 V EE031H01 K17DA9R C2017 02 27.37855 09 54 21.88 +23 03 50.0 19.7 VqEE031I52 K17DA9R C2017 02 27.37899 09 54 21.73 +23 03 40.7 20.0 VqEE031I52 K17DA9R C2017 02 27.37940 09 54 21.61 +23 03 31.2 20.0 VqEE031I52 K17DA9R C2017 02 27.37982 09 54 21.51 +23 03 23.5 21.6 VqEE031I52 K17DA9R C2017 03 02.25013 09 48 47.11 +13 32 26.4 21.0 VqEE031G96 K17DA9R C2017 03 02.25374 09 48 46.45 +13 32 01.6 20.8 VqEE031G96 K17DA9R C2017 03 02.25734 09 48 45.84 +13 31 36.9 20.4 VqEE031G96 K17DA9R C2017 03 02.26094 09 48 45.17 +13 31 12.0 20.9 VqEE031G96 K17DA9R C2017 03 02.33763 09 48 31.61 +13 22 23.6 20.1 VqEE031I52 K17DA9R C2017 03 02.34613 09 48 30.23 +13 21 25.2 20.6 VqEE031I52 K17DA9R C2017 03 02.34775 09 48 29.94 +13 21 14.5 20.4 VqEE031I52 K17DA9R C2017 03 02.35214 09 48 29.24 +13 20 44.4 20.6 VqEE031I52 K17DA9R C2017 03 03.11187 09 48 11.61 +12 04 05.4 21.7 VqEE031I52 K17DA9R C2017 03 03.11333 09 48 11.53 +12 03 58.5 20.4 VqEE031I52 K17DA9R C2017 03 03.11478 09 48 11.39 +12 03 51.2 21.1 VqEE031I52 K17DA9R C2017 03 03.11624 09 48 11.18 +12 03 43.2 21.6 VqEE031I52 K17DA9R C2017 03 04.27748 09 47 13.27 +10 33 10.8 qEE031G96 K17DA9R C2017 03 04.28104 09 47 12.83 +10 32 55.3 20.8 VqEE031G96 K17DA9R C2017 03 04.28451 09 47 12.39 +10 32 40.1 20.7 VqEE031G96 K17DA9R C2017 03 04.38752 09 47 01.32 +10 25 37.1 21.5 VqEE031I52 K17DA9R C2017 03 04.39104 09 47 01.12 +10 25 22.9 21.3 VqEE031I52 K17DA9R C2017 03 04.39266 09 47 00.95 +10 25 16.5 22.1 VqEE031I52 Observer details: 703 Catalina Sky Survey. Observer D. C. Fuls. Measurers 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. G. Matheny, R. L. Seaman, F. C. Shelly. 0.68-m Schmidt + 10K CCD. G96 Mt. Lemmon Survey. Observer R. A. Kowalski. Measurers 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. G. Matheny, R. L. Seaman, F. C. Shelly. 1.5-m reflector + 10K CCD. H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan. Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD. I52 Steward Observatory, Mt. Lemmon Station. Observers E. J. Christensen, J. A. Johnson. Measurers 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. G. Matheny, R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD. Orbital elements: 2017 DR109 Earth MOID = 0.0059 AU Epoch 2017 Feb. 16.0 TT = JDT 2457800.5 MPC M 66.50741 (2000.0) P Q n 0.98798765 Peri. 70.99696 +0.60333045 -0.79734296 a 0.9983934 Node 341.86840 +0.71183854 +0.54712628 e 0.2424744 Incl. 2.83292 +0.35955286 +0.25474896 P 1.00 H 27.6 G 0.15 U 7 Residuals in seconds of arc 170227 703 0.4+ 1.0+ 170227 I52 (1.8+ 0.6+) 170303 I52 0.6+ 0.3+ 170227 703 0.4- 0.8- 170302 G96 0.0 0.3+ 170303 I52 0.8+ 0.4+ 170227 703 0.9- 0.5- 170302 G96 0.1- 0.3+ 170303 I52 0.0 0.0 170227 H01 0.0 0.1+ 170302 G96 0.5+ 0.3+ 170304 G96 0.0 0.9+ 170227 H01 0.1+ 0.1+ 170302 G96 0.3+ 0.1+ 170304 G96 0.3- 0.1- 170227 H01 0.2- 0.3+ 170302 I52 0.3- 0.7- 170304 G96 0.7- 1.1- 170227 H01 0.0 0.0 170302 I52 0.1+ 0.6- 170304 I52 1.0- 0.2- 170227 I52 0.2- 0.3+ 170302 I52 0.3- 0.1- 170304 I52 0.7+ 0.1+ 170227 I52 0.2+ 0.2+ 170302 I52 0.1- 0.1+ 170304 I52 0.3+ 0.4+ 170227 I52 0.8+ 0.6- 170303 I52 0.5- 0.4- Ephemeris: 2017 DR109 a,e,i = 1.00, 0.24, 3 q = 0.7563 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2017 02 02 21 40 06.3 +00 33 12 0.09439 0.8973 19.8 158.2 32.6 ... 2017 02 17 21 34 53.9 +09 45 07 0.02899 0.9615 22.8 156.5 29.7 ... 2017 02 25 10 23 39.7 +52 05 05 0.0076070.9955 137.1 42.6 18.7 ... 2017 03 03 09 48 03.1 +12 16 29 0.03026 1.0202 162.7 16.8 20.9 2017 03 04 09 47 23.1 +10 54 13 0.03439 1.0243 161.9 17.5 21.3 2017 03 05 09 46 55.6 +09 49 27 0.03855 1.0283 161.0 18.3 21.5 ... 2017 03 11 09 46 30.7 +06 18 00 0.06408 1.0520 155.4 23.1 22.8 ... 2017 03 19 09 48 58.2 +04 25 15 0.09972 1.0819 148.6 28.7 24.0 ... 2017 04 03 09 59 26.3 +02 50 16 0.1726 1.1321 137.0 37.0 25.6 A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-E31


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