MPEC 2020-D20 : 2017 DW34
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M.P.E.C. 2020-D20 Issued 2020 February 17, 15:57 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 DW34
Revision to MPEC 2017-D52
Additional Observations:
K17D34W C2020 02 15.39443 10 30 56.52 +12 08 35.1 VED020G96
K17D34W C2020 02 15.39958 10 30 55.61 +12 08 48.0 21.4 GVED020G96
K17D34W C2020 02 15.40473 10 30 54.71 +12 09 01.2 21.5 GVED020G96
K17D34W C2020 02 15.40988 10 30 53.82 +12 09 13.7 21.3 GVED020G96
K17D34W C2020 02 15.49944 10 30 38.32 +12 12 55.2 21.2 GVED020G96
K17D34W C2020 02 15.50089 10 30 38.06 +12 12 59.6 21.3 GVED020G96
K17D34W C2020 02 15.50233 10 30 37.76 +12 13 03.6 21.6 GVED020G96
K17D34W C2020 02 15.50378 10 30 37.57 +12 13 07.1 21.3 GVED020G96
K17D34W C2020 02 15.50523 10 30 37.32 +12 13 10.0 21.0 GVED020G96
K17D34W KC2020 02 15.95310210 29 23.54 +12 32 10.9 21.1 GVED020L01
K17D34W KC2020 02 15.95703510 29 22.84 +12 32 21.2 20.9 GVED020L01
K17D34W KC2020 02 15.96254410 29 21.84 +12 32 35.7 21.0 GVED020L01
K17D34W C2020 02 16.32260 10 28 18.45 +12 48 34.2 20.6 GVED020I52
K17D34W C2020 02 16.32656 10 28 17.68 +12 48 44.2 20.6 GVED020I52
K17D34W C2020 02 16.33052 10 28 16.91 +12 48 54.8 21.6 GVED020I52
K17D34W C2020 02 16.33448 10 28 16.15 +12 49 05.2 21.1 GVED020I52
K17D34W C2020 02 17.52150 10 24 29.16 +13 44 44.4 21.2 GVED020I52
K17D34W C2020 02 17.52348 10 24 28.63 +13 44 49.3 VED020I52
K17D34W C2020 02 17.52547 10 24 28.28 +13 44 53.7 VED020I52
Observer details:
G96 Mt. Lemmon Survey. Observers T. A. Pruyne, K. W. Wierzchos. 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 D. C. Fuls. 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.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector +
CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
200215 G96 54- 16- 200217 I52 61- 18- MPO529334 -15.0 days
Orbital elements:
2017 DW34 Earth MOID = 0.0466 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5 Bell
M 19.53873 (2000.0) P Q
n 0.65272952 Peri. 132.72253 +0.11112572 +0.99076544
a 1.3161757 Node 143.44224 -0.94566509 +0.12945344
e 0.6528730 Incl. 7.49408 -0.30556279 -0.04031931
P 1.51 H 23.2 G 0.15 U 4
Residuals in seconds of arc
170222 G45 0.4+ 0.5+ 170223 300 0.6- 0.1+ 200215 G96 0.0 0.2-
170222 G45 0.7+ 0.1- 170223 300 0.5- 0.8- 200215 G96 0.1- 0.3+
170222 G45 0.0 0.2- 170223 300 0.1- 0.2- 200215 G96 0.1+ 0.0
170222 G45 0.4- 0.0 170224 J95 0.1- 0.2- 200215 G96 0.3+ 0.5-
170222 G45 0.4+ 0.0 170224 J95 0.1- 0.0 200215 G96 0.2+ 0.3+
170222 G45 0.8+ 1.0+ 170224 J95 0.0 0.2- 200215 G96 0.6- 0.8+
170222 G96 0.2- 0.0 170224 I52 0.5- 0.3- 200215 G96 0.2+ 0.7+
170222 G96 0.2+ 0.3+ 170224 I52 1.1+ 0.6- 200215 G96 0.2+ 0.0
170222 G96 0.0 0.1- 170224 I52 0.3+ 1.0- 200215 L01 0.2- 0.1-
170222 G96 0.1- 0.2- 170224 I52 (1.8+ 0.2+) 200215 L01 0.0 0.1-
170222 I52 0.4- 0.1+ 170224 F51 0.3- 0.1+ 200215 L01 0.1+ 0.0
170222 I52 0.0 0.1- 170224 F51 0.0 0.4+ 200216 I52 0.4+ 0.6+
170222 I52 0.1- 0.2+ 170226 H21 0.2+ 0.1+ 200216 I52 0.1+ 0.0
170222 I52 0.1+ 0.1+ 170226 H21 0.3+ 0.1- 200216 I52 0.1- 0.1-
170222 O75 1.0+ 0.5+ 170226 H21 0.2+ 0.2- 200216 I52 0.1- 0.3-
170222 O75 0.3+ 0.7+ 170302 204 0.2+ 0.2- 200217 I52 0.6+ 0.2-
170223 I52 0.6- 0.0 170302 204 0.2+ 0.4- 200217 I52 1.2- 1.1-
170223 I52 0.0 0.2+ 170302 204 0.1+ 0.3+ 200217 I52 (0.4- 2.5-)
170223 I52 0.1+ 0.1+ 170304 C51 0.2- 0.3+
170223 I52 0.5- 0.2- 200215 G96 0.1+ 0.3-
Ephemeris:
2017 DW34 a,e,i = 1.32, 0.65, 7 q = 0.4569
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 01 18 10 54 22.2 +04 25 09 0.6707 1.5269 133.8 27.7 24.5
...
2020 02 02 10 51 28.8 +06 24 40 0.4520 1.3967 150.5 20.3 23.2
...
2020 02 10 10 42 28.9 +09 06 34 0.3474 1.3210 161.7 13.5 22.3
...
2020 02 16 10 29 15.2 +12 34 29 0.2757 1.2612 171.6 6.6 21.4
2020 02 17 10 26 13.2 +13 19 49 0.2644 1.2509 173.2 5.3 21.2
2020 02 18 10 22 52.8 +14 08 59 0.2534 1.2406 174.6 4.3 21.1
...
2020 02 24 09 53 51.3 +20 46 10 0.1921 1.1772 166.7 11.2 20.7
...
2020 03 03 08 25 00.3 +35 42 33 0.1315 1.0883 135.0 40.1 20.6
...
2020 03 18 02 22 01.2 +36 47 47 0.1512 0.9088 51.4 121.1 23.8
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-D20
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