\begin{table}%t2 \caption{\label{tab1} The log of spectroscopic observations.} \begin{tabular}{clcccccc} \hline \hline\noalign{\smallskip} $N$& UT-date& JD & CODE\tablefootmark{*} & Aperture & Sp.range& Res & Seeing\\ & & 2~400~000+ & & arcsec & ${\rm~\AA}$ &${\rm~\AA}$ & arcsec \\ 1&2&3&4&5&6&7&8\\ \hline 1 & 1995 Apr. 25 & 49~832.424 & L(G) & 3.0~$\times$~3.6 & 4000--5400 & -- & 2 \\ 2 & 1995 May 26 & 49~863.375 & L(T) & 3.6~$\times$~3.6 & 4900--5450 & 4.5 & 2 \\ 3 & 1995 Nov. 17 & 50~039.156 & L(G) & 3.6~$\times$~8.4 & 3700--5800 & -- & -- \\ 4 & 1995 Nov. 29 & 50~051.143 & L(G) & 2.0~$\times$~8.4 & 4600--5400 & -- & -- \\ 5 & 1995 Nov. 30 & 50~052.149 & L(G) & 2.0~$\times$~10.8 & 4700--5600 & -- & -- \\ 6 & 1996 Feb. 14 & 50~127.602 & L(N) & 1.5~$\times$~6.0 & 3100--5800 & 6 & 2 \\ 7 & 1996 Mar. 20 & 50~162.580 & L(N) & 2.0~$\times$~6.0 & 3600--5600 & 6 & 3 \\ 8 & 1996 Mar. 20 & 50~162.587 & L(N) & 2.0~$\times$~6.0 & 4700$-$7400 & 6 & 3 \\ 9 & 1996 Mar. 21 & 50~163.553 & L(N) & 2.0~$\times$~6.0 & 3600$-$5600 & 6 & 3 \\ 10 & 1996 Mar. 21 & 50~163.572 & L(N) & 2.0~$\times$~6.0 & 4700$-$7400 & 6 & 3 \\ 11 & 1996 Jun. 15 & 50~249.542 & L(G) & 2.0~$\times$~6.0 & 4600$-$5500 & 5 & 2.5 \\ 12 & 1996 Jul. 12 & 50~276.567 & L(G) & 2.0~$\times$~6.0 & 4600$-$5500 & 5 & 1.4 \\ 13 & 1996 Jul. 12 & 50~276.570 & L(G) & 2.0~$\times$~6.0 & 6370$-$7270 & 5 & 1.4 \\ 14 & 1996 Jul. 13 & 50~277.556 & L(G) & 2.0~$\times$~6.0 & 4600$-$5500 & 5 & 1.6 \\ 15 & 1996 Jul. 17 & 50~281.434 & L(G) & 2.0~$\times$~6.0 & 4100$-$5800 & 8 & 1.3 \\ 16 & 1996 Aug. 10 & 50~305.489 & L(G) & 2.0~$\times$~6.0 & 4600$-$5575 & 5 & 3.2 \\ 17 & 1996 Sep. 11 & 50~338.800 & Z2 & 4.2~$\times$~13.8 & 3850$-$5725 & 5 & 5 \\ 18 & 1996 Nov. 03 & 50~390.431 & L(G) & 2.0~$\times$~6.0 & 4600$-$5500 & 4 & 3 \\ 19 & 1996 Nov. 05 & 50~392.621 & L(G) & 2.0~$\times$~6.0 & 4621$-$5521 & 4 & 3$-$4 \\ 20 & 1997 Mar. 04 & 50~511.622 & L(G) & 2.0~$\times$~6.0 & 4650$-$5550 & 5 & 1.8 \\ 21 & 1997 May 30 & 50~599.370 & L(G) & 2.0~$\times$~6.0 & 4700$-$5600 & 5 & 2.5 \\ 22 & 1997 Jul. 26 & 50~656.499 & L(G) & 2.0~$\times$~6.0 & 4700$-$5675 & 5 & 3$-$4 \\ 23 & 1997 Aug. 30 & 50~691.463 & L(G) & 2.0~$\times$~6.0 & 4700$-$5600 & 5 & 2 \\ 24 & 1997 Sep. 10 & 50~701.576 & L(N) & 2.0~$\times$~6.0 & 3900$-$6600 & 6 & $-$ \\ 25 & 1997 Sep. 10 & 50~701.566 & L(N) & 2.0~$\times$~6.0 & 5200$-$7900 & 6 & $-$ \\ 26 & 1997 Dec. 26 & 50~808.582 & L(U) & 2.0~$\times$~6.0 & 4800$-$5700 & 4 & 3.0 \\ 27 & 1997 Dec. 27 & 50~810.184 & L(U) & 2.0~$\times$~6.0 & 4750$-$5650 & 4 & 4.0 \\ 28 & 1997 Dec. 27 & 50~810.203 & L(U) & 2.0~$\times$~6.0 & 6400$-$7300 & 4 & 4.0 \\ 29 & 1997 Dec. 28 & 50~811.194 & L(U) & 2.0~$\times$~6.0 & 4750$-$5650 & 4 & 2.6 \\ 30 & 1997 Dec. 28 & 50~811.206 & L(U) & 2.0~$\times$~6.0 & 6400$-$7300 & 4 & 2.6 \\ 31 & 1997 Dec. 30 & 50~813.195 & L(G) & 2.0~$\times$~6.0 & 3600$-$7200 & 12 & 3.2 \\ 32 & 1998 Jan. 22 & 50~835.631 & L(N) & 2.0~$\times$~6.0 & 3800$-$6200 & 6 & 2 \\ 33 & 1998 Feb. 23 & 50~867.560 & L(N) & 2.0~$\times$~6.0 & 3800$-$6200 & 6 & 2 \\ 34 & 1998 Feb. 23 & 867.573 & L(N) & 2.0~$\times$~6.0 & 5000$-$7400 & 6 & 2 \\ 35 & 1998 May 06 & 50~940.354 & L(N) & 2.0~$\times$~6.0 & 3700$-$6200 & 6 & 3 \\ 36 & 1998 Jun. 25 & 50~990.302 & L(N) & 2.0~$\times$~6.0 & 3600$-$6100 & 6 & 3 \\ 37 & 1998 Jul. 16 & 51~010.719 & GHO & 2.5~$\times$~6.0 & 4200$-$7400 & 15 & 2 \\ 38 & 1998 Jul. 25 & 51~019.723 & GHO & 2.5~$\times$~6.0 & 4440$-$7640 & 15 & 2.2 \\ 39 & 1998 Jul. 28 & 51~023.491 & L(G) & 2.0~$\times$~6.0 & 4800$-$5700 & 5 & 1.3 \\ 40 & 1998 Jul. 30 & 51~025.431 & L(G) & 2.0~$\times$~6.0 & 4800$-$5700 & 5 & 2 \\ 41 & 1998 Aug. 30 & 51~055.551 & L(N) & 2.0~$\times$~6.0 & 4000$-$6500 & 6 & 1.8 \\ 42 & 1998 Aug. 30 & 51~055.562 & L(N) & 2.0~$\times$~6.0 & 5250$-$7750 & 6 & 1.7 \\ 43 & 1998 Sep. 19 & 51~076.004 & Z1 & 4.2~$\times$~19.8 & 4100$-$5900 & 8 & 2.0 \\ 44 & 1998 Sep. 25 & 51~081.429 & GHO & 2.5~$\times$~6.0 & 4230$-$7430 & 15 & 2 \\ 45 & 1998 Sep. 26 & 51~082.429 & GHO & 2.5~$\times$~6.0 & 4210$-$7410 & 15 & 2 \\ 46 & 1998 Sep. 27 & 51~083.429 & GHO & 2.5~$\times$~6.0 & 4210$-$7410 & 15 & 2 \\ 47 & 1998 Oct. 25 & 51~112.259 & L(G) & 2.0~$\times$~6.0 & 4700$-$5600 & 5 & 3 \\ 48 & 1998 Dec. 02 & 51~149.625 & GHO & 2.5~$\times$~6.0 & 4220$-$7600 & 15 & $-$ \\ 49 & 1999 Jul. 13 & 51~372.516 & L(P) & 2.0~$\times$~6.0 & 4420$-$5655 & 4 & 1.5 \\ 50 & 1999 Aug. 19 & 51~410.309 & L(P) & 2.0~$\times$~6.0 & 4500$-$5740 & 4 & 2 \\ 51 & 1999 Sep. 04 & 51~425.904 & L(U) & 2.0~$\times$~6.0 & 3600$-$6024 & 7 & 1.5 \\ 52 & 1999 Oct. 03 & 51~454.674 & GHO & 2.5~$\times$~6.0 & 4060$-$7330 & 15 & 2 \\ 53 & 1999 Sep. 05 & 51~427.272 & L(P) & 2.0~$\times$~6.0 & 4900$-$7320 & 7 & 1.5 \\ 54 & 1999 Oct. 04 & 51~455.664 & L(U) & 2.0~$\times$~6.0 & 4480$-$5728 & 4 & 1.3 \\ 55 & 1999 Oct. 09 & 51~461.531 & L(N) & 2.0~$\times$~6.0 & 4250$-$6580 & 8 & 3 \\ 56 & 2000 Jul. 19 & 51~745.365 & L(U) & 2.0~$\times$~6.0 & 4390$-$5590 & 5 & 2.2 \\ 57 & 2000 Jul. 22 & 51~748.232 & L(U) & 2.0~$\times$~6.0 & 4390$-$5580 & 5 & $-$ \\ 58 & 2000 Jul. 30 & 51~756.293 & L(U) & 2.0~$\times$~6.0 & 3690$-$6090 & 8 & 1.6 \\ 59 & 2000 Jul. 30 & 51~756.317 & L(U) & 2.0~$\times$~6.0 & 5640$-$8040 & 8 & 1.6 \\ 60 & 2000 Oct. 05 & 51~823.142 & L(U) & 2.0~$\times$~6.0 & 3690$-$6030 & 8 & 1.2 \\ 61 & 2000 Nov. 18 & 51~867.136 & L(U) & 2.0~$\times$~6.0 & 4490$-$5690 & 5 & 1.0 \\ 62 & 2000 Nov. 19 & 51~868.128 & L(U) & 2.0~$\times$~6.0 & 4490$-$5690 & 5 & 1.2 \\ 63 & 2001 Jan. 16 & 51~925.631 & L(U) & 2.0~$\times$~6.0 & 3690$-$6040 & 8 & 1.8 \\ 64 & 2001 Jan. 16 & 51~925.647 & L(U) & 2.0~$\times$~6.0 & 5690$-$8040 & 8 & 1.8 \\ 65 & 2001 Jan. 20 & 51~929.623 & L(U) & 2.0~$\times$~6.0 & 3690$-$6040 & 8 & 1.8 \\ 66 & 2001 Jan. 20 & 51~929.639 & L(U) & 2.0~$\times$~6.0 & 5740$-$7990 & 8 & 1.8 \\ 67 & 2001 Mar. 13 & 51~981.950 & GHO & 2.5~$\times$~6.0 & 4116$-$7436 & 15 & 2.0 \\ 68 & 2001 May 05 & 52~034.660 & GHO & 2.5~$\times$~6.0 & 4160$-$7470 & 15 & $-$ \\ 69 & 2001 May 14 & 52~043.900 & GHO & 2.5~$\times$~6.0 & 3980$-$7280 & 15 & $-$ \\ 70 & 2001 Jun. 14 & 52~074.850 & GHO & 2.5~$\times$~6.0 & 4010$-$7320 & 15 & $-$ \\ 71 & 2001 Jun. 14.5 & 52~075.350 & GHO & 2.5~$\times$~6.0 & 4010$-$7320 & 15 & $-$ \\ 72 & 2001 Jun. 15 & 52~075.850 & GHO & 2.5~$\times$~6.0 & 4010$-$7320 & 15 & $-$ \\ 73 & 2001 Oct. 10 & 52~192.600 & GHO & 2.5~$\times$~6.0 & 4030$-$7336 & 15 & 2.3 \\ 74 & 2001 Nov. 23 & 52~237.272 & L(U) & 2.0~$\times$~6.0 & 3620$-$6000 & 8 & 3.5 \\ 75 & 2002 Feb. 21 & 52~327.200 & L(U) & 2.0~$\times$~6.0 & 5690$-$8040 & 8 & 2.5 \\ 76 & 2002 Feb. 21 & 52~327.226 & L(U) & 2.0~$\times$~6.0 & 3490$-$5840 & 8 & 2.5 \\ 77 & 2002 Mar. 05 & 52~339.019 & GHO & 2.5~$\times$~6.0 & 3880$-$7190 & 15 & 2.0 \\ 78 & 2002 Apr. 03 & 52~368.005 & GHO & 2.5~$\times$~6.0 & 4290$-$5960 & 8 & $-$ \\ 79 & 2002 Jun. 03 & 52~428.968 & GHO & 2.5~$\times$~6.0 & 5740$-$7430 & 8 & $-$ \\ 80 & 2002 Jun. 04 & 52~429.950 & GHO & 2.5~$\times$~6.0 & 3980$-$7300 & 15 & $-$ \\ 81 & 2002 Jun. 05 & 52~430.938 & GHO & 2.5~$\times$~6.0 & 4240$-$5910 & 8 & $-$ \\ 82 & 2002 Jun. 24 & 52~450.385 & L(U) & 2.0~$\times$~6.0 & 3500$-$5840 & 8 & 5 \\ 83 & 2002 Jun. 24 & 52~450.410 & L(U) & 2.0~$\times$~6.0 & 5640$-$7990 & 8 & 5 \\ 84 & 2002 Jul. 09 & 52~464.444 & L(U) & 2.0~$\times$~6.0 & 3500$-$5840 & 8 & 2 \\ 85 & 2002 Jul. 13 & 52~469.408 & L(U) & 2.0~$\times$~6.0 & 3500$-$5840 & 8 & 2 \\ 86 & 2002 Jul. 13 & 52~469.433 & L(U) & 2.0~$\times$~6.0 & 5640$-$7990 & 8 & 2 \\ 87 & 2002 Aug. 08 & 52~495.272 & L(U) & 2.0~$\times$~6.0 & 4290$-$5450 & 8 & $-$ \\ 88 & 2002 Aug. 16 & 52~502.795 & GHO & 2.5~$\times$~6.0 & 4250$-$5930 & 8 & $-$ \\ 89 & 2002 Oct. 14 & 52~562.318 & L(U) & 2.0~$\times$~6.0 & 5640$-$7990 & 8 & 2 \\ 90 & 2002 Oct. 14 & 52~562.342 & L(U) & 2.0~$\times$~6.0 & 3500$-$5840 & 8 & 2 \\ 91 & 2002 Nov. 13 & 52~591.659 & GHO & 2.5~$\times$~6.0 & 5720$-$7410 & 8 & $-$ \\ 92 & 2002 Nov. 14 & 52~592.659 & GHO & 2.5~$\times$~6.0 & 5720$-$7410 & 8 & $-$ \\ 93 & 2002 Nov. 15 & 52~593.671 & GHO & 2.5~$\times$~6.0 & 3800$-$7115 & 15 & $-$ \\ 94 & 2002 Dec. 11 & 52~620.389 & L(U) & 2.0~$\times$~6.0 & 3650$-$5990 & 8 & 2 \\ 95 & 2003 May 08 & 52~768.217 & L(U) & 2.0~$\times$~6.0 & 3700$-$6040 & 8 & 1.5 \\ 96 & 2003 May 10 & 52~770.219 & L(U) & 2.0~$\times$~6.0 & 5750$-$8090 & 8 & 1.5 \\ 97 & 2003 May 23 & 52~782.966 & GHO & 2.5~$\times$~6.0 & 3540$-$7165 & 15 & $-$ \\ 98 & 2003 May 24 & 52~783.976 & GHO & 2.5~$\times$~6.0 & 4220$-$6060 & 8 & $-$ \\ 99 & 2003 May 25 & 52~784.973 & GHO & 2.5~$\times$~6.0 & 5580$-$7440 & 8 & $-$ \\ 100 & 2003 May 26 & 52~785.979 & GHO & 2.5~$\times$~6.0 & 4230$-$6040 & 8 & $-$ \\ 101 & 2003 Jun. 22 & 52~812.963 & GHO & 2.5~$\times$~6.0 & 4270$-$5980 & 8 & $-$ \\ 102 & 2003 Sep. 18 & 52~900.794 & GHO & 2.5~$\times$~6.0 & 3710$-$7100 & 15 & $-$ \\ 103 & 2003 Sep. 20 & 52~902.803 & GHO & 2.5~$\times$~6.0 & 5630$-$7340 & 8 & $-$ \\ 104 & 2003 Oct. 21 & 52~933.672 & GHO & 2.5~$\times$~6.0 & 3840$-$7220 & 15 & $-$ \\ 105 & 2003 Nov. 19 & 52~962.637 & GHO & 2.5~$\times$~6.0 & 3750$-$7132 & 15 & $-$ \\ 106 & 2003 Nov. 20 & 52~963.608 & GHO & 2.5~$\times$~6.0 & 4240$-$5950 & 8 & $-$ \\ 107 & 2004 Mar. 01 & 53~066.358 & L(U) & 2.0~$\times$~6.0 & 5800$-$8100 & 8 & 2 \\ 108 & 2004 Mar. 01 & 53~065.507 & L(U) & 2.0~$\times$~6.0 & 3740$-$6090 & 8 & 2 \\ 109 & 2004 May 20 & 53~145.982 & GHO & 2.5~$\times$~6.0 & 4191$-$5910 & 8 & $-$ \\ 110 & 2004 Jun. 12 & 53~168.955 & GHO & 2.5~$\times$~6.0 & 4210$-$5920 & 8 & $-$ \\ 111 & 2004 Jun. 13 & 53~169.966 & GHO & 2.5~$\times$~6.0 & 5570$-$7320 & 8 & $-$ \\ 112 & 2004 Jun. 15 & 53~171.944 & GHO & 2.5~$\times$~6.0 & 3760$-$7148 & 15 & $-$ \\ 113 & 2004 Aug. 19 & 53~236.808 & GHO & 2.5~$\times$~6.0 & 4280$-$5940 & 8 & $-$ \\ 114 & 2004 Aug. 20 & 53~237.821 & GHO & 2.5~$\times$~6.0 & 5630$-$7360 & 8 & $-$ \\ 115 & 2004 Aug. 21 & 53~238.858 & GHO & 2.5~$\times$~6.0 & 3700$-$7093 & 15 & $-$ \\ 116 & 2004 Sep. 06 & 53~254.771 & GHO & 2.5~$\times$~6.0 & 4190$-$5900 & 8 & $-$ \\ 117 & 2004 Dec. 18 & 53~358.140 & L(S) & 1.0~$\times$~6.1 & 3100$-$7300 & 10 & 4.5 \\ 118 & 2004 Dec. 19 & 53~359.130 & L(S) & 1.0~$\times$~6.1 & 3100$-$7300 & 10 & 2.0 \\ 119 & 2004 Dec. 20 & 53~360.150 & L(S) & 1.0~$\times$~6.1 & 3100$-$7300 & 10 & 1.6 \\ 120 & 2005 Apr. 15 & 53~475.997 & GHO & 2.5~$\times$~6.0 & 4250$-$5960 & 8 & $-$ \\ 121 & 2005 Apr. 16 & 53~476.993 & GHO & 2.5~$\times$~6.0 & 5540$-$7250 & 8 & $-$ \\ 122 & 2005 Apr. 18 & 53~478.992 & GHO & 2.5~$\times$~6.0 & 3790$-$7173 & 15 & $-$ \\ 123 & 2005 May 13 & 53~503.972 & GHO & 2.5~$\times$~6.0 & 4220$-$5910 & 8 & $-$ \\ 124 & 2005 Jun. 10 & 53~531.925 & GHO & 2.5~$\times$~6.0 & 4280$-$5970 & 8 & $-$ \\ 125 & 2005 Aug. 30 & 53~612.758 & GHO & 2.5~$\times$~6.0 & 4330$-$5990 & 8 & $-$ \\ 126 & 2005 Aug. 31 & 53~613.773 & GHO & 2.5~$\times$~6.0 & 4330$-$6000 & 8 & $-$ \\ 127 & 2005 Sep. 01 & 53~614.750 & GHO & 2.5~$\times$~6.0 & 4330$-$6000 & 8 & $-$ \\ 128 & 2005 Dec. 06 & 53~711.420 & L(S) & 1.0~$\times$~6.1 & 3100$-$7300 & 10 & 4.0 \\ 129 & 2006 Jun. 04 & 53~891.490 & L(S) & 1.0~$\times$~6.1 & 3100$-$7300 & 10 & 1.5 \\ 130 & 2006 Sep. 01 & 53~979.790 & GHO & 2.5~$\times$~6.0 & 3500$-$7044 & 15 & 2.1 \\ 131 & 2006 Sep. 16 & 53~994.780 & GHO & 2.5~$\times$~6.0 & 3530$-$7070 & 15 & 3.4 \\ 132 & 2006 Sep. 17 & 53~995.750 & GHO & 2.5~$\times$~6.0 & 4150$-$5950 & 7.5 & 2.4 \\ 133 & 2006 Sep. 18 & 53~996.700 & GHO & 2.5~$\times$~6.0 & 3470$-$7020 & 15 & 2.3 \\ 134 & 2006 Sep. 19 & 53~997.740 & GHO & 2.5~$\times$~6.0 & 4120$-$5920 & 7.5 & 2.4 \\ 135 & 2006 Sep. 20 & 53~998.750 & GHO & 2.5~$\times$~6.0 & 3470$-$7020 & 15 & 2.7 \\ 136 & 2006 Oct. 28 & 54~036.630 & GHO & 2.5~$\times$~6.0 & 3710$-$7270 & 15 & 2.7 \\ 137 & 2006 Oct. 29 & 54~037.640 & GHO & 2.5~$\times$~6.0 & 4230$-$6030 & 7.5 & 2.2 \\ 138 & 2006 Nov. 01 & 54~040.650 & GHO & 2.5~$\times$~6.0 & 4158$-$5958 & 7.5 & 2.3 \\ 139 & 2006 Dec. 18 & 54~088.210 & L(S) & 1.0~$\times$~6.1 & 3100$-$7300 & 10 & 2.0 \\ 140 & 2007 Jan. 12 & 54~112.640 & L(S) & 1.0~$\times$~6.1 & 3100$-$7300 & 10 & 2.9 \\ 141 & 2007 Jan. 13 & 54~113.650 & L(S) & 1.0~$\times$~6.1 & 3100$-$7300 & 10 & 2.2 \\ 142 & 2007 Feb. 12 & 54~143.610 & L(S) & 1.0~$\times$~6.1 & 3100$-$7300 & 10 & 2.3 \\ 143 & 2007 May 22 & 54~242.890 & GHO & 2.5~$\times$~6.0 & 3745$-$7335 & 15 & 3.7 \\ 144 & 2007 May 23 & 54~243.880 & GHO & 2.5~$\times$~6.0 & 4185$-$5985 & 7.5 & 4.2 \\ 145 & 2007 Jun. 20 & 54~271.870 & GHO & 2.5~$\times$~6.0 & 3700$-$7150 & 15 & 2.0 \\ 146 & 2007 Jun. 21 & 54~272.960 & GHO & 2.5~$\times$~6.0 & 4282$-$6090 & 7.5 & 2.7 \\ 147 & 2007 Aug. 09 & 54~321.820 & GHO & 2.5~$\times$~6.0 & 3860$-$7430 & 15 & 2.3 \\ 148 & 2007 Aug. 11 & 54~323.800 & GHO & 2.5~$\times$~6.0 & 3860$-$7430 & 15 & 6.6 \\ 149 & 2007 Aug. 12 & 54~324.810 & GHO & 2.5~$\times$~6.0 & 4330$-$6140 & 7.5 & 3.2 \\ 150 & 2007 Sep. 03 & 54~346.730 & GHO & 2.5~$\times$~6.0 & 3830$-$7417 & 15 & 3.4 \\ 151 & 2007 Sep. 04 & 54~347.720 & GHO & 2.5~$\times$~6.0 & 4320$-$6130 & 7.5 & 3.6 \\ 152 & 2007 Sep. 05 & 54~348.720 & GHO & 2.5~$\times$~6.0 & 4140$-$5950 & 7.5 & 2.6 \\ 153 & 2007 Oct. 16 & 54~389.690 & GHO & 2.5~$\times$~6.0 & 3880$-$7440 & 15 & 2.1 \\ 154 & 2007 Oct. 18 & 54~391.630 & GHO & 2.5~$\times$~6.0 & 4200$-$6000 & 7.5 & 2.5 \\ 155 & 2007 Nov. 02 & 54~406.650 & GHO & 2.5~$\times$~6.0 & 4180$-$5990 & 7.5 & 3.0 \\ 156 & 2007 Nov. 04 & 54~408.610 & GHO & 2.5~$\times$~6.0 & 3810$-$7380 & 15 & 2.9 \\ 157 & 2007 Nov. 08 & 54~412.690 & GHO & 2.5~$\times$~6.0 & 3820$-$7390 & 15 & 2.8 \\ \end{tabular} \tablefoot{Column~(1): number. Column~(2): UT date. Column~(3):~Julian date (JD). Column~(4): CODE\tablefootmark{*}. Column~(5): projected spectrograph entrance apertures. Column~(6): wavelength range covered. Column~(7): spectral resolution. Column~(8): mean seeing in arcsec.\\ \tablefoottext{*}{L(G,T,U,P,S) -- 6~m telescope in prime focus with different variants of the long slit spectrographs and CCD; L(N) -- 6~m telescope, Nasmyth focus; Z(1,2) -- 1~m Zeiss, Cassegrain focus; GHO -- 2.1~m telescope GHO (Mexico), Cassegrain focus and B\&Ch spectrograph.} } \end{table}