MPEC 2022-S305 : 2017 SZ20
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M.P.E.C. 2022-S305 Issued 2022 September 28, 04:47 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 SZ20
Revision to MPEC 2017-T8
Additional Observations:
K17S20Z C2022 09 26.46875202 47 01.041+14 00 49.02 20.63wUES305F52
K17S20Z C2022 09 26.48091602 46 57.523+14 04 10.26 20.51wUES305F52
K17S20Z C2022 09 26.49324302 46 53.922+14 07 33.91 20.58wUES305F52
K17S20Z C2022 09 26.50578802 46 50.232+14 11 01.31 20.54wUES305F52
K17S20Z C2022 09 26.56491102 46 32.760+14 27 18.71 VES305F51
K17S20Z C2022 09 26.56584302 46 32.491+14 27 34.59 18.86GVES305F51
K17S20Z KC2022 09 26.95539902 44 59.009+16 15 33.01 19.8 GVES305B49
K17S20Z KC2022 09 26.95675902 44 58.634+16 15 55.55 19.7 GVES305B49
K17S20Z KC2022 09 27.31922102 43 17.67 +17 59 36.1 20.5 VuES305H21
K17S20Z KC2022 09 27.32201702 43 16.78 +18 00 24.5 20.4 VuES305H21
K17S20Z KC2022 09 27.32481402 43 15.91 +18 01 12.8 20.3 VuES305H21
K17S20Z ^C2022 09 27.50354402 42 26.760+18 53 39.35 20.56GVES305568
K17S20Z ^C2022 09 27.50618202 42 25.885+18 54 25.49 20.52GVES305568
K17S20Z ^C2022 09 27.50716602 42 25.557+18 54 42.73 20.50GVES305568
K17S20Z KC2022 09 27.91188602 40 32.60 +20 52 33.4 19.9 GVES305203
K17S20Z KC2022 09 27.91462 02 40 31.73 +20 53 27.4 19.9 GVES305104
K17S20Z KC2022 09 27.95149202 40 19.84 +21 04 24.6 20.0 GVES305203
K17S20Z KC2022 09 27.95569 02 40 18.43 +21 05 39.8 VES305204
K17S20Z KC2022 09 27.97139 02 40 13.29 +21 10 21.0 20.5 GVES305204
K17S20Z hC2022 09 28.02253502 39 56.935+21 25 26.36 20.2 GVES305J95
K17S20Z hC2022 09 28.03500102 39 52.752+21 29 10.54 19.8 GVES305J95
K17S20Z hC2022 09 28.04126502 39 50.676+21 31 02.60 20.2 GVES305J95
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurer P.
Bacci. 0.60-m f/4.0 reflector + CCD.
203 GiaGa Observatory. Observers S. Foglia, G. Galli. Measurer G. Galli.
0.36-m f/5.76 Schmidt-Cassegrain + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector +
CCD.
568 Mauna Kea. Observers R. Wainscoat, C. Wipper, E. Bertin. Measurers R.
Weryk, R. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD.
B49 Paus Observatory, Sabadell. Observer J. Camarasa. Measurer G.
Duszanowicz. 0.30-m f/4.0 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, I.
Smith. Measurers K. Chambers, S. Chastel, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.76-m f/3.0 astrograph + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
220926 F52 16+ 15+ 220928 J95 17+ 15+ MPO435137 +1.59 days
Orbital elements:
2017 SZ20 Earth MOID = 0.0573 AU
Epoch 2022 Aug. 9.0 TT = JDT 2459800.5 Bell
M 279.16188 (2000.0) P Q
n 0.79025509 Peri. 53.10733 +0.51821943 -0.85442229
a 1.1586649 Node 6.04993 +0.62641811 +0.34929408
e 0.1260383 Incl. 20.88087 +0.58227912 +0.38465074
P 1.25 H 24.48 G 0.15 U 1
Residuals in seconds of arc
170929 G96 0.2- 0.6+ 170930 I52 0.2- 0.1- 220926 F51 0.3+ 0.7+
170929 G96 0.0 0.7+ 171001 G96 0.4- 0.5- 220926 B49 1.4- 0.5+
170929 G96 0.0 0.3+ 171001 G96 0.2- 0.2+ 220926 B49 1.2- 0.2-
170929 G96 0.1- 0.9- 171001 G96 0.2+ 0.4- 220927 H21 0.1- 0.3+
170929 G96 0.6+ 0.2- 171001 G96 0.2+ 0.4+ 220927 H21 0.2- 0.3+
170929 G96 0.3+ 0.2- 171001 H21 0.8+ 0.1- 220927 H21 0.0 0.1+
170929 G96 0.1- 0.2- 171001 H21 0.8+ 0.1+ 220927 568 0.0 0.0
170929 G96 0.2+ 0.2+ 171001 H21 0.6+ 0.1- 220927 568 0.0 0.1-
170929 I52 0.2- 0.0 171001 926 0.6+ 0.1+ 220927 568 0.0 0.0
170929 I52 0.3- 0.0 171001 926 0.2- 0.1+ 220927 203 0.4- 0.0
170929 I52 0.4- 0.2+ 171001 926 0.2+ 0.1+ 220927 104 0.6- 1.6+
170929 I52 0.4- 0.1+ 171007 926 0.0 0.1+ 220927 203 0.2- 0.1+
170929 Z84 0.2- 0.0 171007 926 0.8- 0.2+ 220927 204 0.7- 0.6+
170929 Z84 0.0 0.0 171007 926 0.3+ 0.5- 220927 204 0.3- 0.1-
170930 H21 0.2- 0.1- 220926 F52 0.0 0.2- 220928 J95 0.2+ 0.1-
170930 H21 0.3- 0.0 220926 F52 0.2+ 0.0 220928 J95 0.3- 0.2+
170930 I52 0.1- 0.1- 220926 F52 0.2+ 0.1- 220928 J95 0.1- 0.2-
170930 I52 0.0 0.0 220926 F52 0.0 0.0
170930 I52 0.2- 0.0 220926 F51 0.2+ 0.2+
Ephemeris:
2017 SZ20 a,e,i = 1.16, 0.13, 21 q = 1.0126
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2022 08 29 03 10 52.5 -34 17 59 0.2273 1.1133 111.4 57.6 23.6
...
2022 09 13 03 12 41.6 -22 13 15 0.1370 1.0843 121.5 52.3 22.3
...
2022 09 21 03 03 04.9 -06 13 48 0.09490 1.0699 131.9 44.3 21.2
...
2022 09 27 02 44 42.9 +16 28 55 0.07372 1.0599 139.8 37.7 20.5
2022 09 28 02 40 01.5 +21 19 33 0.07179 1.0583 140.0 37.5 20.4
2022 09 29 02 34 40.5 +26 22 35 0.07044 1.0567 139.7 37.8 20.4
...
2022 10 05 01 41 01.3 +55 49 53 0.07526 1.0476 127.3 49.4 20.8
...
2022 10 13 22 30 30.0 +75 16 53 0.1063 1.0368 108.6 65.8 22.0
...
2022 10 28 18 15 09.6 +70 41 40 0.1846 1.0214 93.4 76.2 23.5
M. P. C. Staff (C) Copyright 2022 MPC M.P.E.C. 2022-S305
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