Legend
MN#: Month number
-
SN : Spectroscopic Nights
UN : Useless Nights
%Photo : percentage of photometric nights
%Spect : percentage of spectroscopic nights
%Useless : percentage of useless nights
Month MN# PN SN UN %Photo %Spec %Useless
Jan-91 1 25.30 2.30 3.50 81.35 7.40 11.25
Feb-91 2 26.30 1.50 0.30 93.59 5.34 1.07
Mar-91 3 27.30 3.50 0.30 87.78 11.25 0.96
Apr-91 4 17.00 9.80 3.30 56.48 32.56 10.96
May-91 5 8.50 13.50 9.00 27.42 43.55 29.03
Jun-91 6 8.60 12.30 8.80 28.96 41.41 29.63
Jul-91 7 8.50 12.00 10.50 27.42 38.71 33.87
Aug-91 8 9.90 13.10 8.00 31.94 42.26 25.80
Sep-91 9 11.00 12.00 7.00 36.67 40.00 23.33
Oct-91 10 19.60 7.30 4.30 62.82 23.40 13.78
Nov-91 11 17.30 9.00 3.80 57.48 29.90 12.62
Dec-91 12 13.30 14.80 3.30 42.36 47.13 10.51
Jan-92 13 14.50 13.80 2.80 46.62 44.37 9.00
Feb-92 14 23.80 5.00 0.30 81.79 17.18 1.03
Mar-92 15 19.30 5.00 6.70 62.26 16.13 21.61
Apr-92 16 11.30 9.50 9.30 37.54 31.56 30.90
May-92 17 7.00 14.00 9.00 23.33 46.67 30.00
Jun-92 18 7.60 11.60 11.00 25.17 38.41 36.42
Jul-92 19 12.00 10.00 9.00 38.71 32.26 29.03
Aug-92 20 9.90 13.10 8.00 31.94 42.26 25.81
Sep-92 21 23.00 4.50 2.50 76.67 15.00 8.33
Oct-92 22 15.30 8.80 7.00 49.20 28.30 22.51
Nov-92 23 15.60 9.60 4.80 52.00 32.00 16.00
Dec-92 24 23.50 3.80 3.80 75.56 12.22 12.22
Jan-93 25 23.50 4.80 2.80 75.56 15.43 9.00
Feb-93 26 21.30 6.80 0.00 75.80 24.20 0.00
Mar-93 27 24.80 5.50 0.80 79.74 17.68 2.57
Apr-93 28 10.50 12.00 7.50 35.00 40.00 25.00
May-93 29 9.30 12.80 9.00 29.90 41.16 28.94
Jun-93 30 6.80 16.50 6.70 22.67 55.00 22.33
Jul-93 31 14.50 10.80 5.80 46.62 34.73 18.65
Aug-93 32 15.30 9.00 6.80 49.20 28.94 21.86
Sep-93 33 17.00 6.80 6.30 56.48 22.59 20.93
Oct-93 34 16.30 8.50 6.30 52.41 27.33 20.26
Nov-93 35 16.00 5.80 1.30 69.26 25.11 5.63
Dec-93 36 26.80 4.30 0.00 86.17 13.83 0.00
Jan-94 37 22.00 1.50 1.50 88.00 6.00 6.00
Feb-94 38 25.00 3.00 0.00 89.29 10.71 0.00
Mar-94 39 20.00 8.50 2.50 64.52 27.42 8.06
Apr-94 40 10.30 12.80 7.00 34.22 42.52 23.26
May-94 41 13.30 9.30 8.50 42.77 29.90 27.33
Jun-94 42 10.00 14.00 6.00 33.33 46.67 20.00
Jul-94 43 13.30 11.00 6.80 42.77 35.37 21.86
Aug-94 44 16.80 3.30 11.00 54.02 10.61 35.37
Sep-94 45 14.00 10.00 6.00 46.67 33.33 20.00
Oct-94 46 19.00 9.80 2.20 61.29 31.61 7.09
Nov-94 47 26.80 2.20 1.00 89.00 7.00 3.00
Dec-94 48 19.50 9.00 2.50 62.90 30.00 8.06
Jan-95 49 15.30 5.50 3.30 49.35 17.74 10.64
Feb-95 50 17.30 3.80 0.00 61.78 13.57 0.00
Mar-95 51 19.80 10.00 1.20 63.87 32.26 3.87
Apr-95 52 22.50 4.50 3.00 75.00 15.00 10.00
May-95 53 12.75 12.00 6.25 41.13 38.71 20.16
Jun-95 54 10.00 14.50 5.50 33.33 48.33 18.33
Jul-95 55 14.75 11.00 5.25 47.58 35.48 16.94
Aug-95 56 21.25 8.25 1.50 68.55 26.61 4.84
Sep-95 57 15.75 5.75 8.50 52.50 19.17 28.33
Oct-95 58 22.25 3.00 5.75 71.77 9.68 18.55
Nov-95 59 24.75 3.50 1.75 82.50 11.67 5.83
Dec-95 60 18.50 6.75 1.75 68.52 25.00 6.48
Jan-96 61 30.25 0.75 0.00 97.58 2.42 0.00
Feb-96 62 28.75 0.25 0.00 99.14 0.86 0.00
Mar-96 63 27.00 2.50 1.50 87.10 8.06 4.84
Apr-96 64 21.50 3.00 5.50 71.67 10.00 18.33
May-96 65 17.25 7.00 6.75 55.65 22.58 21.77
Jun-96 66 8.25 13.25 8.50 27.50 44.17 28.33
Jul-96 67 17.00 12.00 2.00 54.84 38.71 6.45
Aug-96 68 22.00 4.00 5.00 70.97 12.90 16.13
Sep-96 69 20.00 9.25 0.75 66.67 30.83 2.50
Oct-96 70 25.50 5.00 0.50 82.26 16.13 1.61
Nov-96 71 27.00 3.00 0.00 90.00 10.00 0.00
Dec-96 72 28.25 2.25 0.50 91.00 7.00 2.00
Jan-97 73 28.25 2.75 0.00 91.13 8.87 0.00
Feb-97 74 22.00 6.00 0.00 78.57 21.43 0.00
Mar-97 75 25.50 4.50 1.00 82.26 14.52 3.22
Apr-97 76 28.25 1.75 0.00 94.17 5.83 0.00
May-97 77 15.75 6.75 8.50 50.81 21.77 27.42
Jun-97 78 14.00 3.70 12.30 46.67 12.33 41.00
Jul-97 79 14.40 7.90 8.70 46.45 25.48 28.06
Aug-97 80 16.00 2.90 12.10 51.62 9.35 39.03
Sep-97 81 18.50 4.90 6.60 61.67 16.33 22.00
Oct-97 82 14.50 9.50 7.00 46.77 30.65 22.58
Nov-97 83 26.00 0.60 3.40 86.67 2.00 11.33
Dec-97 84 21.70 8.00 1.30 70.00 25.81 4.19
Jan-98 85 28.00 3.00 0.00 90.32 9.68 0.00
Feb-98 86 18.00 4.10 5.90 64.29 14.64 21.07
Mar-98 87 18.30 6.70 6.00 59.03 21.61 19.35
Apr-98 88 11.70 6.90 11.40 39.00 23.00 38.00
May-98 89 13.00 5.90 12.10 41.94 19.03 39.03
Jun-98 90 10.00 6.20 13.80 33.33 20.67 46.00
Jul-98 91 17.60 2.50 10.90 56.77 8.06 35.17
Aug-98 92 18.70 6.30 6.00 60.32 20.32 19.36
Sep-98 93 24.40 2.30 3.30 81.33 7.67 11.00
Oct-98 94 26.80 2.20 2.00 86.45 7.10 6.45
Nov-98 95 26.80 3.20 0.00 89.33 10.67 0.00
Dec-98 96 29.30 1.40 0.30 94.51 4.52 0.97
Jan-99 97 28.90 1.50 0.60 93.23 4.84 1.93
Feb-99 98 24.90 2.80 0.30 88.93 10.00 1.07
Mar-99 99 28.90 0.00 2.10 93.23 0.00 6.77
Apr-99 100 26.00 1.00 4.00 86.67 3.33 10.00
May-99 101 21.90 3.10 6.00 70.65 10.00 19.35