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  • MPEC 2017-T84 : 2017 TH4

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    M.P.E.C. 2017-T84                                Issued 2017 Oct. 15, 14:59 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 TH4
    
    Observations:
         K17T04H* C2017 10 13.37191 03 02 34.62 +06 20 36.6          17.4 GUET084703
         K17T04H  C2017 10 13.37689 03 02 24.56 +06 18 05.5          17.6 GUET084703
         K17T04H  C2017 10 13.38185 03 02 14.60 +06 15 36.2                UET084703
         K17T04H  C2017 10 13.38683 03 02 04.60 +06 13 05.1          17.3 GUET084703
         K17T04H  C2017 10 13.41972 03 00 59.22 +05 56 38.5          17.8 GUET084G96
         K17T04H  C2017 10 13.42064 03 00 57.41 +05 56 11.0          17.7 GUET084G96
         K17T04H  C2017 10 13.42154 03 00 55.65 +05 55 44.4          17.7 GUET084G96
         K17T04H  C2017 10 13.42167 03 00 55.38 +05 55 40.5          17.8 GUET084G96
         K17T04H #C2017 10 13.43424 03 00 29.27 +05 49 24.0          18.1 VqET084H06
         K17T04H #C2017 10 13.43621 03 00 25.45 +05 48 26.0          17.8 VqET084H06
         K17T04H  C2017 10 13.45871 02 59 43.43 +05 37 27.3          17.2 GUET084703
         K17T04H  C2017 10 13.45889 02 59 43.08 +05 37 21.9          17.5 GUET084703
         K17T04H  C2017 10 13.48086 02 59 01.25 +05 26 41.5          17.5 GUET084703
         K17T04H  C2017 10 13.48104 02 59 00.96 +05 26 36.4          17.5 GUET084703
         K17T04H  C2017 10 13.48121 02 59 00.61 +05 26 31.9          17.6 GUET084703
         K17T04H  C2017 10 13.48138 02 59 00.30 +05 26 26.8          17.4 GUET084703
         K17T04H |C2017 10 13.52542 02 58 06.69 +05 11 04.3          17.2 RvET084Q62
         K17T04H |C2017 10 13.52756 02 58 02.78 +05 10 03.9          17.2 RvET084Q62
         K17T04H |C2017 10 13.52969 02 57 58.86 +05 09 04.0          17.3 RvET084Q62
         K17T04H |C2017 10 13.55891 02 57 05.09 +04 55 24.0          17.5 RvET084Q62
         K17T04H |C2017 10 13.56063 02 57 01.89 +04 54 37.0          17.4 RvET084Q62
         K17T04H |C2017 10 13.56234 02 56 58.78 +04 53 49.2          17.4 RvET084Q62
         K17T04H KC2017 10 13.88065 02 48 29.60 +02 29 33.0          17.8 GUET084204
         K17T04H KC2017 10 13.88351 02 48 25.20 +02 28 24.3                UET084204
         K17T04H KC2017 10 13.88635 02 48 20.80 +02 27 15.8                UET084204
         K17T04H KC2017 10 13.88920 02 48 16.40 +02 26 07.3                UET084204
         K17T04H KC2017 10 13.89171 02 48 12.61 +02 25 15.5          17.3 RqET084160
         K17T04H KC2017 10 13.89205 02 48 12.02 +02 24 59.1                UET084204
         K17T04H KC2017 10 13.89332 02 48 10.12 +02 24 36.9          18.0 RqET084160
         K17T04H KC2017 10 13.89492 02 48 07.61 +02 23 58.1          17.8 RqET084160
         K17T04H KC2017 10 13.89652 02 48 05.15 +02 23 20.4          17.7 RqET084160
         K17T04H KC2017 10 13.89813 02 48 02.66 +02 22 41.8          17.8 RqET084160
         K17T04H KC2017 10 13.89973 02 48 00.18 +02 22 03.7          17.7 RqET084160
         K17T04H KC2017 10 13.91157 02 47 40.07 +02 16 53.8          17.9 VSET084C43
         K17T04H KC2017 10 13.91363 02 47 36.83 +02 16 06.8          17.7 VSET084C43
         K17T04H KC2017 10 13.91568 02 47 33.69 +02 15 17.3          17.7 VSET084C43
         K17T04H KC2017 10 13.91802 02 47 30.13 +02 14 21.8          17.8 VSET084C43
         K17T04H KC2017 10 13.91897 02 47 30.51 +02 14 24.9          17.6  uET084104
         K17T04H KC2017 10 13.92279 02 47 24.62 +02 12 54.6          17.4  uET084104
         K17T04H KC2017 10 13.92661 02 47 18.75 +02 11 24.3          17.6  uET084104
         K17T04H KC2017 10 13.93423 02 47 07.04 +02 08 24.3          17.6  uET084104
         K17T04H KC2017 10 13.96430 02 46 21.07 +01 56 21.2          17.8 RqET084A17
         K17T04H KC2017 10 13.97400 02 46 06.44 +01 52 36.2          17.8 RqET084A17
         K17T04H KC2017 10 13.98050 02 45 56.57 +01 50 24.8          18.0  tET084K63
         K17T04H KC2017 10 13.98371 02 45 51.82 +01 48 51.9          17.7 RqET084A17
         K17T04H KC2017 10 13.98427 02 45 50.91 +01 48 58.3          18.1  tET084K63
         K17T04H KC2017 10 13.98627 02 45 47.87 +01 48 12.1          18.2  tET084K63
         K17T04H KC2017 10 14.01474 02 45 05.52 +01 37 15.9          17.5 RqET084203
         K17T04H KC2017 10 14.02541 02 44 49.63 +01 33 13.2          17.7 RqET084203
         K17T04H KC2017 10 14.02856 02 44 42.51 +01 31 54.0          17.5  oET084K88
         K17T04H KC2017 10 14.03060 02 44 39.52 +01 31 07.7          17.3  oET084K88
         K17T04H KC2017 10 14.03257 02 44 36.59 +01 30 22.9          17.5  oET084K88
         K17T04H KC2017 10 14.03693 02 44 32.61 +01 28 53.6          17.9 RqET084203
         K17T04H  C2017 10 14.11429 02 42 54.28 +01 05 22.9          18.0 RrET084Y00
         K17T04H  C2017 10 14.11522 02 42 52.99 +01 05 01.5          18.0 RrET084Y00
         K17T04H  C2017 10 14.11616 02 42 51.61 +01 04 41.3          18.1 RrET084Y00
         K17T04H  C2017 10 14.36196 02 37 31.44 -00 24 09.0          18.1 GUET084703
         K17T04H  C2017 10 14.36695 02 37 24.93 -00 25 47.0          18.0 GUET084703
         K17T04H  C2017 10 14.37193 02 37 18.49 -00 27 23.9          18.0 GUET084703
         K17T04H  C2017 10 14.37692 02 37 11.96 -00 29 01.8          18.0 GUET084703
         K17T04H  C2017 10 14.45273 02 35 35.68 -00 53 10.1          17.6 RoET084926
         K17T04H  C2017 10 14.45377 02 35 34.39 -00 53 29.8          17.6 RoET084926
         K17T04H  C2017 10 14.45480 02 35 33.12 -00 53 49.0          17.7 RoET084926
         K17T04H  C2017 10 14.88660 02 28 07.95 -02 58 53.9                qET084246
         K17T04H  C2017 10 14.88709 02 28 07.41 -02 59 01.8                qET084246
         K17T04H  C2017 10 14.88721 02 28 07.30 -02 59 03.4                qET084246
         K17T04H  C2017 10 14.88733 02 28 07.18 -02 59 05.6                qET084246
         K17T04H  C2017 10 14.88744 02 28 07.04 -02 59 07.4                qET084246
         K17T04H  C2017 10 14.88756 02 28 06.93 -02 59 09.1                qET084246
         K17T04H  C2017 10 14.88767 02 28 06.82 -02 59 11.0                qET084246
         K17T04H  C2017 10 14.88779 02 28 06.71 -02 59 12.2                qET084246
         K17T04H KC2017 10 14.89881802 27 56.44 -03 01 58.0          17.8 RUET084587
         K17T04H KC2017 10 14.90091002 27 54.25 -03 02 31.4                UET084587
         K17T04H KC2017 10 14.90450002 27 50.59 -03 03 27.3                UET084587
         K17T04H  C2017 10 14.91720 02 27 36.32 -03 06 55.8                qET084046
         K17T04H  C2017 10 14.91762 02 27 35.87 -03 07 01.4                qET084046
         K17T04H  C2017 10 14.91929 02 27 34.27 -03 07 27.1                qET084046
         K17T04H  C2017 10 14.91967 02 27 34.00 -03 07 33.8                qET084046
         K17T04H  C2017 10 14.92046 02 27 32.99 -03 07 45.5                qET084046
         K17T04H  C2017 10 14.92085 02 27 32.66 -03 07 51.0                qET084046
         K17T04H  C2017 10 15.38340 02 20 32.85 -04 56 52.5          18.2 RoET084926
         K17T04H  C2017 10 15.38498 02 20 31.44 -04 57 12.8          18.0 RoET084926
         K17T04H  C2017 10 15.38655 02 20 30.04 -04 57 33.1          18.1 RoET084926
         K17T04H  C2017 10 15.43570 02 19 46.84 -05 08 07.6          18.3 GUET084I52
         K17T04H  C2017 10 15.43625 02 19 46.37 -05 08 14.7          18.3 GUET084I52
         K17T04H  C2017 10 15.43680 02 19 45.89 -05 08 21.6          18.2 GUET084I52
         K17T04H  C2017 10 15.43735 02 19 45.43 -05 08 28.6          18.1 GUET084I52
    
    Observer details:
    046 Klet.  Observers M. Tichy, M. Janda.  Measurer M. Tichy.  0.57-m f/5.2
        reflector + CCD.
    104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri, L. Nesti.
        Measurers P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
    160 Castelmartini.  Observers M. Jaeger, E. Prosperi, S. Prosperi, W. Vollmann.
        Measurer E. Prosperi.  0.35-m f/10 Schmidt-Cassegrain + CCD.
    203 GiaGa Observatory.  Observers S. Foglia, G. Galli.  Measurer G. Galli.
        0.28-m f/6.8 Schmidt-Cassegrain + CCD.
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector
        + CCD.
    246 Klet Observatory-KLENOT.  Observers M. Tichy, J. Ticha.  Measurer M. Tichy.
        1.06-m KLENOT Telescope + CCD.
    587 Sormano.  Observers A. Fumagalli, P. Sicoli, A. Testa, G. Ventre.
        Measurer P. Sicoli.  0.5-m f/6.8 reflector + CCD.
    703 Catalina Sky Survey.  Observer R. G. Matheny.  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.
    926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
        M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
    A17 Guidestar Observatory, Weinheim.  Observers M. Emmerich, S. Melchert.
        0.36-m f/6 Schmidt-Cassegrain + CCD.
    C43 Hoyerswerda.  Observer P. Lindner.  0.30-m f/6.3 Schmidt-Cassegrain + CCD.
    G96 Mt. Lemmon Survey.  Observer 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.
        1.5-m reflector + 10K CCD.
    H06 iTelescope Observatory, Mayhill.  Observer M. Suzuki.  0.43-m f/6.8
        reflector + CCD + f/4.5 focal reducer.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer R. G. Matheny.
        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.
    K63 G. Pascoli Observatory, Castelvecchio Pascoli.  Observer R. Bacci.  0.40-m
        f/3.2 Newtonian reflector + CCD.
    K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  0.60-m Schmidt + CCD.
    Q62 iTelescope Observatory, Siding Spring.  Observers S. Foglia, L. Buzzi,
        P. Concari, C. Cremaschini, G. Galli, M. Tombelli.  0.15-m f/7 refractor
        + CCD.
    Y00 SONEAR Observatory, Oliveira.  Observers C. Jacques, E. Pimentel,
        J. Barros.  Measurer C. Jacques.  0.45-m f/2.9 reflector + CCD.
    
    Orbital elements:
    2017 TH4                                                 Earth MOID = 0.0069 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M  27.14595              (2000.0)            P               Q
    n   0.91407681     Peri.   71.65087     +0.01108957     +0.99689066
    a   1.0515121      Node   199.48762     -0.98282891     -0.00350405
    e   0.3968499      Incl.   13.52383     -0.18418565     +0.07871933
    P   1.08           H   24.5           G   0.15           U   6
    Residuals in seconds of arc
    171013 703  0.2+  0.0     171013 160  0.1+  0.5-    171014 703  0.6+  0.5+
    171013 703  0.1+  0.0     171013 160  0.3+  0.1+    171014 703  0.2-  0.1-
    171013 703  0.4+  0.9+    171013 160  0.3+  0.0     171014 926  0.5-  0.2+
    171013 703  0.4+  0.3+    171013 160  0.1+  0.1+    171014 926  0.5-  0.1+
    171013 G96  0.3-  0.1-    171013 C43  0.2+  0.4-    171014 926  0.4-  0.3+
    171013 G96  0.3-  0.2-    171013 C43  1.0-  1.5+    171014 246  0.5+  0.0
    171013 G96  0.1-  0.0     171013 C43  1.0-  0.7+    171014 246  0.1-  0.2-
    171013 G96  0.3-  0.1-    171013 C43  0.6-  0.7+    171014 246  0.2+  0.1+
    171013 H06  0.1-  0.1-    171013 104  0.5+  0.0     171014 246  0.2+  0.2-
    171013 H06  0.0   0.2+    171013 104  0.3+  0.1+    171014 246  0.2-  0.2-
    171013 703  0.2-  0.0     171013 104  0.3+  0.1+    171014 246  0.0   0.0
    171013 703  0.2-  0.1-    171013 104  0.0   0.2-    171014 246  0.1+  0.2-
    171013 703  0.5-  0.2-    171013 A17  0.1+  0.1+    171014 246  0.3+  0.5+
    171013 703  0.2+  0.1-    171013 A17  0.1+  0.0     171014 587  0.0   0.1-
    171013 703  0.2-  0.4+    171013 K63  1.0-  0.9-    171014 587  0.5-  0.6-
    171013 703  0.1-  0.2+    171013 A17  0.1-  0.0     171014 587  0.1+  0.1-
    171013 Q62  0.9-  0.9-    171013 K63  0.4-  0.4-    171014 046  0.6-  1.2-
    171013 Q62  0.2-  0.8-    171013 K63  0.7-  0.6-    171014 046  0.9-  0.2-
    171013 Q62  0.1+  0.6-    171014 203  0.1+  0.3+    171014 046  0.9+  0.1+
    171013 Q62  0.5+  0.7-    171014 203  0.3-  0.2-    171014 046  2.7+  0.7-
    171013 Q62  0.1-  0.3+    171014 K88  0.5-  0.5+    171014 046  0.2-  0.0
    171013 Q62  0.2+  0.1+    171014 K88  0.2-  0.3+    171014 046  0.8+  0.5+
    171013 204  0.1-  0.2-    171014 K88  0.6-  0.0     171015 926  0.3-  0.3-
    171013 204  0.2+  0.0     171014 203  0.0   0.4+    171015 926  0.2-  0.0
    171013 204  0.0   0.3-    171014 Y00  0.9-  0.7+    171015 926  0.2-  0.1+
    171013 204  0.1-  0.4-    171014 Y00  0.1-  0.4-    171015 I52  0.6-  0.2+
    171013 160  0.6+  0.0     171014 Y00  0.3-  0.1-    171015 I52  0.5-  0.1+
    171013 204  0.2+  0.2-    171014 703  0.1+  0.4+    171015 I52  0.5-  0.2+
    171013 160  0.6+  0.0     171014 703  0.1+  0.1+    171015 I52  0.3-  0.2+
    
    Ephemeris:
    2017 TH4                 a,e,i = 1.05, 0.40, 14                  q = 0.6342
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 09 15    12 49 24.2 +23 22 09   0.2186  0.8186    27.7   145.1    28.4
    ...
    2017 09 30    12 31 05.0 +29 36 38   0.08988 0.9268    32.3   144.7    26.6
    ...
    2017 10 08    10 42 19.8 +43 06 30   0.02897 0.9838    57.3   121.3    21.7
    ...
    2017 10 14    02 45 26.3 +01 46 31   0.03021 1.0254   156.9    22.4    18.0
    2017 10 15    02 26 13.0 -03 24 47   0.03716 1.0321   159.7    19.6    18.4
    2017 10 16    02 13 02.4 -06 54 37   0.04451 1.0389   160.0    19.1    18.8
    ...
    2017 10 22    01 39 27.2 -15 08 55   0.09189 1.0785   153.8    24.0    20.6
    ...
    2017 10 30    01 26 45.4 -17 31 32   0.1587  1.1288   146.4    29.1    22.0
    ...
    2017 11 14    01 23 00.3 -17 06 40   0.2926  1.2142   135.0    35.2    23.7
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-T84
    

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