Comet P/2007 T6 = 2016 R1 (Catalina)

K. Sarneczky (Konkoly 天文台)とP. Szekely (Szeged大学)は、9月1.1日と2.1日UT、Konkoly
天文台 Piszkesteto Stationの0.60-m Schmidt望遠鏡得たフィルターなしのCCD露出でP/2007 T6 
(IAUC 8881, 8894を参照)を検出した。
この彗星の外観は、120秒露出15枚のスタックで完全な恒星状であった。

検出位置は次のとおり。

     2016 UT             R.A. (2000) Decl.       Mag.   Observer
     Sept. 1.07573    3 29 38.40   - 9 27 52.8   20.0   Sarneczky
           1.08381    3 29 38.78   - 9 27 55.1   19.7     "
           1.09189    3 29 39.17   - 9 27 57.1   19.4     "
           2.07769    3 30 24.34   - 9 32 19.0   19.8     "
           2.08582    3 30 24.67   - 9 32 20.7   19.6     "
           2.09395    3 30 25.04   - 9 32 23.2   20.0     "

連結軌道要素、位置推算表は次のとおり、

Orbital elements:
    P/2007 T6 (Catalina)
Epoch 2007 Aug. 8.0 TT = JDT 2454320.5
T 2007 Aug. 19.66590 TT                                 MPCW
q   2.2322202            (2000.0)            P               Q
n   0.10359401     Peri.  335.86908     +0.16988650     -0.91420762
a   4.4899994      Node   102.63318     +0.95433123     +0.05952287
e   0.5028462      Incl.   22.15078     +0.24574474     +0.40085091
P   9.51
From 255 observations 2007 Oct. 6-2016 Sept. 2, mean residual 0".6.

    P/2007 T6 (Catalina)
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5
T 2017 Feb. 15.49505 TT                                 MPCW
q   2.2207861            (2000.0)            P               Q
n   0.10407804     Peri.  335.89966     +0.17134113     -0.91366630
a   4.4760678      Node   102.51394     +0.95410355     +0.06061117
e   0.5038533      Incl.   22.18238     +0.24561887     +0.40192061
P   9.47
From 255 observations 2007 Oct. 6-2016 Sept. 2, mean residual 0".6.

    P/2007 T6 (Catalina)
Epoch 2026 July 19.0 TT = JDT 2461240.5
T 2026 Aug. 1.30580 TT                                  MPCW
q   2.2157863            (2000.0)            P               Q
n   0.10440843     Peri.  336.11337     +0.16883162     -0.91386805
a   4.4666199      Node   102.45543     +0.95424064     +0.05773818
e   0.5039232      Incl.   22.21876     +0.24682117     +0.40188493
P   9.44
From 255 observations 2007 Oct. 6-2016 Sept. 2, mean residual 0".6.

    P/2007 T6 (Catalina)
Epoch 2016 July 31.0 TT = JDT 2457600.5
T 2017 Feb. 15.48379 TT                                 MPCW
q   2.2207653            (2000.0)            P               Q
n   0.10404146     Peri.  335.89393     +0.17137220     -0.91366727
a   4.4771168      Node   102.51760     +0.95410601     +0.06065642
e   0.5039742      Incl.   22.18165     +0.24558763     +0.40191159
P   9.47
From 255 observations 2007 Oct. 6-2016 Sept. 2, mean residual 0".6.

Ephemeris:
    P/2007 T6 (Catalina)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1
2016 08 03    03 00 43.0 -08 05 10   2.4989  2.7080    90.7    22.0  20.3
...
2016 08 18    03 17 05.1 -08 36 13   2.2767  2.6461    99.9    22.1  20.0
...
2016 08 26    03 24 36.7 -09 03 01   2.1629  2.6140   105.0    21.9  19.8
...
2016 09 01    03 29 34.8 -09 27 30   2.0803  2.5905   109.0    21.6  19.7
2016 09 02    03 30 20.7 -09 31 54   2.0668  2.5866   109.6    21.6  19.7
2016 09 03    03 31 05.5 -09 36 25   2.0534  2.5827   110.3    21.5  19.7
...
2016 09 09    03 35 09.4 -10 05 10   1.9748  2.5598   114.3    21.0  19.6
...
2016 09 17    03 39 23.1 -10 47 17   1.8754  2.5301   119.8    20.2  19.4
...
2016 10 02    03 43 07.7 -12 10 58   1.7096  2.4768   130.2    18.0  19.1

(CBET 4315、MPEC 2016-R19)