MPEC 2017-F198: 2012 TZ79
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M.P.E.C. 2017-F198 Issued 2017 Mar. 29, 19:46 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
2012 TZ79
Revision to MPEC 2012-T68
Additional Observations:
K12T79Z C2017 03 28.25406 10 17 31.023+18 05 38.05 22.3 wLEF198F51
K12T79Z C2017 03 28.26434 10 17 29.360+18 05 28.99 22.0 wLEF198F51
K12T79Z C2017 03 28.27468 10 17 27.662+18 05 20.23 21.8 wLEF198F51
K12T79Z _C2017 03 29.27319210 14 56.031+17 50 28.97 21.8 GUEF198568
K12T79Z _C2017 03 29.27440810 14 55.852+17 50 27.90 21.6 GUEF198568
K12T79Z _C2017 03 29.27562710 14 55.659+17 50 26.90 21.3 GUEF198568
K12T79Z KC2017 03 29.30881 10 14 49.22 +17 49 51.7 21.1 RoEF198291
K12T79Z KC2017 03 29.31571 10 14 48.10 +17 49 45.3 21.2 RoEF198291
K12T79Z KC2017 03 29.32263 10 14 47.05 +17 49 38.6 21.8 RoEF198291
Observer details:
291 LPL/Spacewatch II. Observer T. H. Bressi. 1.8-m f/2.7 reflector + CCD.
568 Mauna Kea. Observers R. J. Wainscoat, L. Wells. Measurers M. Micheli,
R. J. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD.
F51 Pan-STARRS 1, Haleakala. Observers B. Gibson, T. Goggia, S. Kahale,
T. Lowe, A. Schultz, M. Willman. Measurers K. Chambers, S. Chastel,
L. Denneau, H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat,
C. Waters, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or integer in degrees), reference and Delta-T
170328 F51 53- 35+ 170329 291 54- 36+ MPO240142 +20 day
Orbital elements:
2012 TZ79 Earth MOID = 0.1187 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5 (M-h) MPC
M 279.08234 (2000.0) P Q
n 0.58390088 Peri. 262.72136 +0.01020233 +0.99960937
a 1.4176748 Node 8.00263 -0.82778428 +0.02304020
e 0.3132416 Incl. 10.77177 -0.56095373 -0.01581944
P 1.69 H 22.4 G 0.15 U 4
Residuals in seconds of arc
121009 F51 0.1- 0.3- 121011 H21 0.1- 0.1+ 121017 568 0.0 0.0
121009 F51 0.1- 0.1- 121011 H01 0.1- 0.3+ 170328 F51 0.1+ 0.2+
121009 F51 0.0 0.2- 121011 H01 0.0 0.3+ 170328 F51 0.2+ 0.2-
121010 G96 0.7- 0.7+ 121011 H01 0.3- 0.5+ 170328 F51 0.1- 0.1-
121010 G96 0.2+ 0.2+ 121011 H01 0.1- 0.3+ 170329 568 0.2+ 0.5-
121010 G96 0.4+ 0.0 121016 H21 0.1- 0.3+ 170329 568 0.5+ 0.5-
121010 G96 0.5+ 0.2+ 121016 H21 0.3- 0.1- 170329 568 0.5+ 0.4-
121010 G96 0.3+ 0.6+ 121016 H21 0.3- 0.2+ 170329 291 0.1- 0.2+
121011 H21 0.4- 0.2+ 121017 568 0.0 0.0 170329 291 0.5- 0.3+
121011 H21 0.2+ 0.1+ 121017 568 0.0 0.0 170329 291 0.1+ 0.1+
Ephemeris:
2012 TZ79 a,e,i = 1.42, 0.31, 11 q = 0.9736
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 02 27 11 32 52.7 +20 09 42 0.4605 1.4365 162.6 11.9 22.2
...
2017 03 14 10 56 43.5 +20 17 06 0.3909 1.3680 160.0 14.4 21.9
...
2017 03 22 10 34 18.8 +19 22 15 0.3702 1.3304 150.2 21.9 21.9
...
2017 03 28 10 18 09.3 +18 09 21 0.3613 1.3019 142.0 28.2 22.0
2017 03 29 10 15 36.6 +17 54 40 0.3603 1.2972 140.6 29.2 22.0
2017 03 30 10 13 07.2 +17 39 17 0.3594 1.2924 139.2 30.3 22.0
...
2017 04 05 09 59 30.7 +15 53 56 0.3563 1.2638 131.2 36.6 22.2
...
2017 04 13 09 45 27.6 +13 04 56 0.3567 1.2258 121.2 44.4 22.3
...
2017 04 28 09 31 56.1 +06 51 36 0.3627 1.1565 105.3 57.1 22.6
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-F198
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