[Iaude] MPEC P81: COMET P/2001 T3 = 2018 P2 (NEAT)

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sun Aug 12 21:19:16 EDT 2018


M.P.E.C. 2018-P81                                Issued 2018 Aug. 13, 01:10 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714


                       COMET P/2001 T3 = 2018 P2 (NEAT)

     E. Schwab (J04) reported that his first-night recovery observations
showed a faint tail extending ~10" in P.A. 270 on a frame with a total
exposure time of 600s.  The 2018 prediction by the undersigned on MPC 94679
required a correction in T of -1.16 days.
 
Observations:
    PK18P020*KC2018 08 10.19601 05 51 36.15 +27 48 20.5          18.8 NUEP081J04
    PK18P020 KC2018 08 10.20355 05 51 37.01 +27 48 23.0          18.8 NUEP081J04
    PK18P020 KC2018 08 10.21109 05 51 37.86 +27 48 26.1          19.0 NUEP081J04
    PK18P020 KC2018 08 12.31315505 55 38.419+28 01 00.42         20.8 GVEP081Y28
    PK18P020 KC2018 08 12.31562405 55 38.711+28 01 00.90         20.4 GVEP081Y28
 
Observer details:
J04 ESA Optical Ground Station, Tenerife.  Observer P. Ruiz.  Measurers
    E. Schwab, M. Micheli, D. Koschny, A. Knoefel, M. Busch.  1.0-m f/4.4
    reflector + CCD.
Y28 OASI, Nova Itacuruba.  Observers F. Monteiro, P. Arcoverde, E. Rondon,
    D. Lazzaro, R. Souza, T. Rodrigues.  Measurer M. Micheli.  1.0-m f/7
    reflector + CCD.
 
Orbital elements:
    P/2001 T3 (NEAT)
Epoch 2002 Feb. 15.0 TT = JDT 2452320.5
T 2002 Feb. 1.09383 TT                                  MPCW
q   2.5057379            (2000.0)            P               Q
n   0.05936926     Peri.  356.23282     +0.60193915     -0.74994104
a   6.5077115      Node    56.53924     +0.74097367     +0.39647532
e   0.6149587      Incl.   19.19781     +0.29770335     +0.52952409
P  16.60
>From 143 observations 2001 Aug. 20-2018 Aug. 12, mean residual 0".5.

    P/2001 T3 (NEAT)
Epoch 2018 June 11.0 TT = JDT 2458280.5
T 2018 June  9.50134 TT                                 MPCW
q   2.4853397            (2000.0)            P               Q
n   0.06023086     Peri.  356.77946     +0.61382989     -0.74088027
a   6.4455008      Node    55.16339     +0.73151499     +0.40397684
e   0.6144070      Incl.   19.39738     +0.29681423     +0.53656234
P  16.36
>From 143 observations 2001 Aug. 20-2018 Aug. 12, mean residual 0".5.

    P/2001 T3 (NEAT)
Epoch 2034 Oct. 5.0 TT = JDT 2464240.5
T 2034 Oct. 12.99640 TT                                 MPCW
q   2.4996555            (2000.0)            P               Q
n   0.05927240     Peri.  357.02013     +0.62673766     -0.73235841
a   6.5147993      Node    53.99765     +0.72156133     +0.41647977
e   0.6163112      Incl.   19.20959     +0.29419237     +0.53869820
P  16.63
>From 143 observations 2001 Aug. 20-2018 Aug. 12, mean residual 0".5.

    P/2001 T3 (NEAT)
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5
T 2018 June  9.51568 TT                                 MPCW
q   2.4853242            (2000.0)            P               Q
n   0.06022988     Peri.  356.78399     +0.61376969     -0.74093066
a   6.4455705      Node    55.16351     +0.73154804     +0.40391887
e   0.6144136      Incl.   19.39725     +0.29685726     +0.53653640
P  16.36
>From 143 observations 2001 Aug. 20-2018 Aug. 12, mean residual 0".5.

Ephemeris:
    P/2001 T3 (NEAT)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2018 07 14    04 58 28.5 +24 39 54   3.2627  2.5027    35.3    13.6  19.6
...
2018 07 29    05 28 00.1 +26 30 14   3.1687  2.5210    42.9    15.9  19.5
...
2018 08 06    05 43 32.3 +27 22 32   3.1133  2.5333    47.0    17.0  19.5
...
2018 08 12    05 55 02.4 +27 59 07   3.0693  2.5436    50.3    17.8  19.5
2018 08 13    05 56 56.4 +28 05 01   3.0618  2.5454    50.8    18.0  19.5
2018 08 14    05 58 50.2 +28 10 51   3.0542  2.5473    51.3    18.1  19.5
...
2018 08 20    06 10 05.8 +28 44 49   3.0076  2.5589    54.6    18.8  19.5
...
2018 08 28    06 24 45.6 +29 27 37   2.9428  2.5758    59.2    19.7  19.5
...
2018 09 12    06 50 53.0 +30 42 58   2.8138  2.6117    68.1    21.0  19.4

Gareth V. Williams           (C) Copyright 2018 MPC           M.P.E.C. 2018-P81



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