MPEC 2017-Q152: 1998 SZ27
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M.P.E.C. 2017-Q152 Issued 2017 Aug. 30, 18:04 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
1998 SZ27
Revision to MPEC 1998-S36
Additional Observations:
J98S27Z S2017 08 27.95429 04 13 33.74 +18 02 11.9 18 RLEQ152C51
J98S27Z s2017 08 27.95429 1 - 38.2360 + 6411.1298 + 2437.2610 EQ152C51
J98S27Z S2017 08 28.01987 04 13 20.35 +17 56 21.9 LEQ152C51
J98S27Z s2017 08 28.01987 1 - 35.8344 + 6436.4188 + 2370.1217 EQ152C51
J98S27Z S2017 08 28.08532 04 13 06.97 +17 50 30.9 LEQ152C51
J98S27Z s2017 08 28.08532 1 - 44.7252 + 6432.4112 + 2380.7931 EQ152C51
J98S27Z S2017 08 28.15077 04 12 53.60 +17 44 40.6 LEQ152C51
J98S27Z s2017 08 28.15077 1 - 53.6049 + 6428.3807 + 2391.4529 EQ152C51
J98S27Z S2017 08 28.28180 04 12 26.74 +17 32 56.3 LEQ152C51
J98S27Z s2017 08 28.28180 1 - 60.2115 + 6449.2174 + 2334.8955 EQ152C51
J98S27Z C2017 08 29.04116 04 09 52.77 +16 23 46.5 19.5 VSEQ152033
J98S27Z C2017 08 29.04345 04 09 52.29 +16 23 34.1 19.7 VSEQ152033
J98S27Z C2017 08 29.04575 04 09 51.80 +16 23 21.5 20.0 VSEQ152033
J98S27Z C2017 08 29.04616 04 09 51.76 +16 23 21.1 19.5 RqEQ152246
J98S27Z C2017 08 29.04693 04 09 51.72 +16 23 15.9 qEQ152246
J98S27Z KC2017 08 29.05040 04 09 50.99 +16 22 58.6 19.7 UEQ152104
J98S27Z KC2017 08 29.05823 04 09 49.33 +16 22 16.4 19.8 UEQ152104
J98S27Z KC2017 08 29.06638 04 09 47.59 +16 21 32.1 19.7 UEQ152104
J98S27Z KC2017 08 29.07665004 09 45.06 +16 20 32.4 20.0 SEQ152K80
J98S27Z C2017 08 29.08796 04 09 42.78 +16 19 30.8 20.0 VSEQ152033
J98S27Z C2017 08 29.09027 04 09 42.28 +16 19 18.1 19.7 VSEQ152033
J98S27Z KC2017 08 29.09102504 09 41.98 +16 19 14.0 20.5 SEQ152K80
J98S27Z C2017 08 29.09256 04 09 41.80 +16 19 05.8 19.7 VSEQ152033
J98S27Z KC2017 08 29.10313304 09 39.38 +16 18 06.9 20.1 SEQ152K80
J98S27Z KC2017 08 29.35935 04 08 46.87 +15 54 38.9 19.5 RqEQ152734
J98S27Z KC2017 08 29.36455 04 08 45.74 +15 54 09.9 19.4 RqEQ152734
J98S27Z KC2017 08 29.37061 04 08 44.42 +15 53 37.1 19.5 RqEQ152734
J98S27Z KC2017 08 29.37235 04 08 44.03 +15 53 28.1 19.8 RqEQ152734
J98S27Z HC2017 08 30.48599 04 04 49.33 +14 09 20.5 oEQ152691
J98S27Z HC2017 08 30.49388 04 04 47.57 +14 08 35.7 oEQ152691
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers C. Hoegner,
B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri, M. Fragai.
Measurers P. Bacci, L. Tesi, G. Fagioli. 0.60-m f/4 reflector + CCD.
246 Klet Observatory-KLENOT. Observers M. Tichy, J. Ticha. Measurer M. Tichy.
1.06-m KLENOT Telescope + CCD.
691 Steward Observatory, Kitt Peak. Observer R. A. Mastaler. 0.9-m f/3
reflector + CCD.
734 Farpoint Observatory. Observer G. Hug. 0.69-m reflector + CCD.
C51 WISE. Measurers A. K. Mainzer, J. M. Bauer, T. Grav, J. R. Masiero,
J. W. Dailey, R. M. Cutri, E. L. Wright, C. Nugent, S. Sonnett, E. Kramer.
K80 Platanus Observatory, Lusowko. Observer T. Kluwak. 0.28-m f/2.2 Schmidt
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
170827 C51 1+ 11+ 170830 691 0.93- 9.20+ MPO171000 +24 day
Orbital elements:
1998 SZ27 PHA, Earth MOID = 0.0078 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 87.32258 (2000.0) P Q
n 1.14417314 Peri. 47.71972 -0.81043075 +0.57854733
a 0.9053327 Node 166.72254 -0.58147577 -0.81353981
e 0.5067607 Incl. 23.64550 +0.07132977 -0.05861707
P 0.86 H 20.4 G 0.15 U 6
Residuals in seconds of arc
980921 704 1.1- 1.0- 980926 426 0.1- 0.1- 170829 104 0.2- 0.7-
980921 704 1.0+ 0.7+ 980926 422 0.1- 0.1- 170829 104 0.0 0.1-
980921 704 0.9- 1.4- 980926 422 0.1- 0.2+ 170829 104 0.1+ 0.0
980921 704 1.8+ 1.7+ 980926 422 0.3- 0.4+ 170829 K80 0.2- 0.1+
980921 704 0.3- 1.4+ 980929 426 0.6+ 0.8+ 170829 033 0.0 0.0
980923 426 0.5+ 0.1- 980929 426 0.3+ 0.1- 170829 033 0.0 0.0
980923 426 0.1+ 0.3- 980929 426 0.0 1.0+ 170829 K80 0.0 0.4+
980923 426 0.8- 0.2- 170827 C51 0.1- 0.1- 170829 033 0.2+ 0.2+
980923 426 0.4+ 0.3- 170828 C51 0.0 0.0 170829 K80 0.1+ 0.4-
980924 426 0.2- 0.0 170828 C51 0.0 0.5- 170829 734 0.0 0.2-
980924 426 0.5- 0.3- 170828 C51 0.3+ 0.3+ 170829 734 0.1- 0.6-
980924 426 0.7- 0.4- 170828 C51 0.1+ 0.2+ 170829 734 0.2- 0.1-
980925 422 0.7+ 0.6- 170829 033 0.0 0.0 170829 734 0.4- 0.5+
980925 422 0.2+ 0.4- 170829 033 0.1+ 0.1+ 170830 691 (1.9- 3.5-)
980925 422 0.1+ 0.6+ 170829 033 0.1+ 0.1+ 170830 691 (1.7- 3.5-)
980926 426 0.6- 1.2- 170829 246 0.5+ 0.7+
980926 426 0.1+ 0.0 170829 246 (2.3+ 0.3-)
Ephemeris:
1998 SZ27 a,e,i = 0.91, 0.51, 24 q = 0.4465
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 07 31 05 58 22.6 +45 18 25 0.3637 0.7894 43.1 118.6 22.4
...
2017 08 15 04 56 28.0 +34 03 35 0.2947 0.9327 66.0 97.2 21.1
...
2017 08 23 04 30 01.4 +24 54 26 0.2642 1.0007 80.2 84.7 20.5
...
2017 08 29 04 10 00.1 +16 28 00 0.2455 1.0476 92.0 74.5 20.1
2017 08 30 04 06 31.5 +14 55 27 0.2429 1.0550 94.0 72.7 20.0
2017 08 31 04 02 59.5 +13 20 40 0.2405 1.0624 96.1 70.9 19.9
...
2017 09 06 03 40 21.2 +03 11 22 0.2303 1.1047 109.0 59.6 19.6
...
2017 09 14 03 05 29.5 -11 06 56 0.2315 1.1558 125.5 45.1 19.3
...
2017 09 29 01 49 36.4 -31 46 13 0.2873 1.2357 140.0 31.4 19.5
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-Q152
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