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  • MPEC 2019-T171 : 2019 TL4

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    M.P.E.C. 2019-T171                              Issued 2019 October 9, 16:26 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
    
                                    2019 TL4                                 
    
    
    Observations:
         K19T04L  C2019 09 29.54798 01 18 51.075+21 39 13.68         21.8 wUET171F51
         K19T04L  C2019 09 29.56146 01 18 50.305+21 39 07.12         21.7 wUET171F51
         K19T04L  C2019 09 29.57506 01 18 49.540+21 39 00.37         21.4 wUET171F51
         K19T04L  C2019 09 29.58867 01 18 48.801+21 38 53.36         21.7 wUET171F51
         K19T04L* C2019 10 08.27217 01 10 03.89 +20 09 47.7          21.0 GVET171G96
         K19T04L  C2019 10 08.27730 01 10 03.51 +20 09 44.1          20.9 GVET171G96
         K19T04L  C2019 10 08.28241 01 10 03.18 +20 09 40.1          21.4 GVET171G96
         K19T04L  C2019 10 08.28752 01 10 02.83 +20 09 36.2          21.1 GVET171G96
         K19T04L  C2019 10 08.36335 01 09 57.43 +20 08 39.7          21.3 GVET171I52
         K19T04L  C2019 10 08.36945 01 09 57.00 +20 08 35.0          21.0 GVET171I52
         K19T04L  C2019 10 08.37556 01 09 56.54 +20 08 30.5          21.6 GVET171I52
         K19T04L  C2019 10 08.37972 01 09 56.25 +20 08 27.5          21.0 GVET171I52
         K19T04L  C2019 10 09.22071 01 08 59.12 +19 57 48.2                VET171I52
         K19T04L  C2019 10 09.22404 01 08 58.68 +19 57 45.2                VET171I52
         K19T04L  C2019 10 09.22737 01 08 58.65 +19 57 42.1                VET171I52
         K19T04L  C2019 10 09.23070 01 08 58.33 +19 57 40.9                VET171I52
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M. 
       Willman.  Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J. 
       Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. 
       Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  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 T. A. Pruyne.  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.
    
    Orbital elements:
    2019 TL4                                                 Earth MOID = 0.2091 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 Bell
    M 305.04078              (2000.0)            P               Q
    n   0.18081615     Peri.  264.05751     -0.54083788     -0.82172815
    a   3.0972617      Node   220.41935     +0.83873841     -0.51078437
    e   0.6905700      Incl.   16.08147     +0.06334243     -0.25270969
    P   5.45           H   19.1           G   0.15           U   8
    Residuals in seconds of arc
    190929 F51  0.3+  0.1-    191008 G96  0.1+  0.0     191009 I52  0.9+  0.3+
    190929 F51  0.0   0.1+    191008 G96  0.3+  0.2-    191009 I52  1.9-  0.2-
    190929 F51  0.2-  0.1+    191008 I52  0.2+  0.0     191009 I52  1.0+  0.7-
    190929 F51  0.1-  0.1-    191008 I52  0.2+  0.1-    191009 I52  0.1-  0.6+
    191008 G96  0.1-  0.0     191008 I52  0.2-  0.0
    191008 G96  0.4-  0.2+    191008 I52  0.1-  0.1+
    
    Ephemeris:
    2019 TL4                 a,e,i = 3.10, 0.69, 16                  q = 0.9584
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2019 09 09    01 29 41.3 +23 02 32   1.4326  2.2602   135.0    18.4    22.6
    ...
    2019 09 24    01 23 11.6 +22 17 37   1.2006  2.1307   150.2    13.5    21.9
    ...
    2019 10 02    01 16 36.9 +21 17 50   1.0949  2.0601   158.7    10.1    21.5
    ...
    2019 10 08    01 10 22.2 +20 13 12   1.0253  2.0066   164.7     7.5    21.2
    2019 10 09    01 09 14.1 +20 00 41   1.0145  1.9977   165.6     7.2    21.2
    2019 10 10    01 08 04.5 +19 47 39   1.0040  1.9887   166.4     6.8    21.1
    ...
    2019 10 16    01 00 40.6 +18 18 54   0.9463  1.9345   169.0     5.6    20.9
    ...
    2019 10 24    00 50 05.6 +15 53 29   0.8840  1.8615   164.4     8.3    20.8
    ...
    2019 11 08    00 31 25.9 +10 20 44   0.8110  1.7229   145.8    18.9    20.8
    
    A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-T171
    


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