E. Schwab (Egelsbach, ドイツ)の通報によると、9月7-8日UT、D. AbreuがスペインのTenerife
にあるESA(欧州宇宙機関)の光学地上局の1.0-m f/4.4 反射望遠鏡で得た画像からP/2001 R6 
(IAUC 7723を参照)を検出した。露出合計600秒スタックのイメージにコマ、尾ともになかった。
測定の補助には、M. Micheli, D. Koschny, A. Knoefelと M. Buschがあたった。
MPEC 2013-A29のG. V. Williamsの予報に対して、Delta(T)は、+0.36 dayであった。

検出位置は次のとおり、

     2018 UT             R.A. (2000) Decl.       Mag.   Observer
     Sept. 7.08501    2 08 16.55   -13 25 56.0   19.8   Abreu
           7.14283    2 08 16.67   -13 26 02.4   19.8     "
           7.20030    2 08 16.83   -13 26 08.6   19.9     "
           8.11194    2 08 20.48   -13 27 49.1   19.1     "
           8.21684    2 08 20.60   -13 28 00.4   20.0     "

連結軌道要素と位置推算表は次のとおり、

Orbital elements:
    P/2001 R6 (LINEAR-Skiff)
Epoch 2001 Oct. 18.0 TT = JDT 2452200.5
T 2001 Oct. 27.09619 TT                                 MPCW
q   2.1150912            (2000.0)            P               Q
n   0.11808859     Peri.  306.19393     +0.92418541     -0.25899768
a   4.1146297      Node    70.32204     +0.36786519     +0.80130246
e   0.4859583      Incl.   17.34512     -0.10274495     +0.53929081
P   8.35
>From 95 observations 2001 Aug. 19-2018 Sept. 8, mean residual 0".6.

    P/2001 R6 (LINEAR-Skiff)
Epoch 2010 Mar. 25.0 TT = JDT 2455280.5
T 2010 Mar. 26.34015 TT                                 MPCW
q   2.1786419            (2000.0)            P               Q
n   0.11569441     Peri.  308.45182     +0.92932023     -0.24564787
a   4.1712010      Node    67.32340     +0.35517269     +0.79895963
e   0.4776943      Incl.   17.38669     -0.10107560     +0.54892680
P   8.52
From 95 observations 2001 Aug. 19-2018 Sept. 8, mean residual 0".6.

    P/2001 R6 (LINEAR-Skiff)
Epoch 2018 Oct. 9.0 TT = JDT 2458400.5
T 2018 Oct. 4.58710 TT                                  MPCW
q   2.1910673            (2000.0)            P               Q
n   0.11528544     Peri.  308.47883     +0.92917375     -0.24629692
a   4.1810600      Node    67.33485     +0.35567271     +0.79878420
e   0.4759541      Incl.   17.37964     -0.10066311     +0.54889127
P   8.55
From 95 observations 2001 Aug. 19-2018 Sept. 8, mean residual 0".6.

    P/2001 R6 (LINEAR-Skiff)
Epoch 2027 Apr. 25.0 TT = JDT 2461520.5
T 2027 Apr. 26.11920 TT                                 MPCW
q   2.1894223            (2000.0)            P               Q
n   0.11535065     Peri.  308.61323     +0.92918463     -0.24642222
a   4.1794841      Node    67.21225     +0.35576427     +0.79839965
e   0.4761501      Incl.   17.38604     -0.10023827     +0.54939429
P   8.54
From 95 observations 2001 Aug. 19-2018 Sept. 8, mean residual 0".6.

    P/2001 R6 (LINEAR-Skiff)
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5
T 2018 Oct. 4.60963 TT                                  MPCW
q   2.1910458            (2000.0)            P               Q
n   0.11534670     Peri.  308.48446     +0.92914521     -0.24640143
a   4.1795797      Node    67.33565     +0.35576375     +0.79874564
e   0.4757736      Incl.   17.37972     -0.10060482     +0.54890047
P   8.54
From 95 observations 2001 Aug. 19-2018 Sept. 8, mean residual 0".6.

Ephemeris:
    P/2001 R6 (LINEAR-Skiff)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1
2018 08 09    01 53 27.9 -12 47 25   1.6418  2.2372   112.6    24.7  20.6
...
2018 08 24    02 04 02.7 -13 01 16   1.4968  2.2162   123.0    22.5  20.3
...
2018 09 01    02 07 11.1 -13 14 37   1.4292  2.2075   128.9    20.8  20.2
...
2018 09 07    02 08 15.9 -13 25 42   1.3837  2.2022   133.5    19.4  20.1
2018 09 08    02 08 20.0 -13 27 32   1.3766  2.2014   134.2    19.1  20.1
2018 09 09    02 08 22.3 -13 29 21   1.3697  2.2006   135.0    18.9  20.1
...
2018 09 15    02 07 55.7 -13 39 22   1.3313  2.1967   139.7    17.2  20.0
...
2018 09 23    02 05 36.6 -13 48 10   1.2894  2.1930   145.8    14.9  20.0
...
2018 10 08    01 56 41.7 -13 37 19   1.2442  2.1912   155.1    11.1  19.9

(CBET 4552、MPEC 2018-R59)