ENERGY-CHANNEL Conversion Table
This table contains information about the channel-energy relationship for RXTE PCA data for the three gain epochs of the mission so far (Epoch 1 = launch through 3/21/96; Epoch 2 = 3/21/96 - 4/15/96; Epoch 3 = 4/15/96 - present). In each case the data were generated for the full PCA with all detectors and layers added, using FTOOLS 3.7. If you have used earlier versions of the response matrix generation tools, you will notice small differences between your values and the values given here.
The PCA onboard electronics bin up the channels differently depending on which configuration has been requested. The first column contains the ORIGINAL (or absolute) channels, while the second column contains the channel binning for Standard 2 data (which is the type of data most RXTE analysts start on). Subsequent columns give the maximum energy bound for each channel.
IMPORTANT NOTES:
- Remember that when you perform channel selection, the extractors require you to supply the ORIGINAL channel boundaries, regardless of the mode of data you are analyzing (Std2, Binned, Event, GoodXenon etc). For further details see the ABC guide, or the cookbook recipe "Creating and plotting light curves, hardness ratios and color-color diagrams."
- The information in this table is useful for most cases, but should be considered only approximate (within a few percent). If you are performing analysis for which the exact values of the energy boundaries are critical, or if you are analyzing data from separate layers and detectors, you should generate a response matrix for your particular dataset and examine the channel-energy information contained in the first extension of the FITS file.
EPOCH: 1 2 3
DATE: through 3/21/96 3/21/96-4/15/96 after 4/15/96
(time boundary:) (18:33:39) (23:05:59)
CHANNEL E_MAX E_MAX E_MAX
(Abs) (Standard2) keV keV keV
0-4 0 1.24 1.41 1.71
5 1 1.50 1.73 2.08
6 2 1.77 2.04 2.44
7 3 2.03 2.35 2.81
8 4 2.29 2.67 3.17
9 5 2.56 2.98 3.54
10 6 2.82 3.29 3.90
11 7 3.09 3.61 4.27
12 8 3.35 3.92 4.63
13 9 3.62 4.23 5.00
14 10 3.88 4.55 5.37
15 11 4.15 4.86 5.73
16 12 4.42 5.18 6.10
17 13 4.68 5.49 6.47
18 14 4.95 5.81 6.84
19 15 5.21 6.12 7.20
20 16 5.48 6.44 7.57
21 17 5.75 6.75 7.94
22 18 6.01 7.07 8.31
23 19 6.28 7.38 8.68
24 20 6.55 7.70 9.04
25 21 6.81 8.02 9.41
26 22 7.08 8.33 9.78
27 23 7.35 8.65 10.1
28 24 7.61 8.96 10.5
29 25 7.88 9.28 10.8
30 26 8.15 9.60 11.2
31 27 8.42 9.92 11.6
32 28 8.69 10.2 12.0
33 29 8.95 10.5 12.3
34 30 9.22 10.8 12.7
35 31 9.49 11.1 13.1
36 32 9.76 11.5 13.4
37 33 10.0 11.8 13.8
38 34 10.3 12.1 14.2
39 35 10.5 12.4 14.6
40 36 10.8 12.7 14.9
41 37 11.1 13.1 15.3
42 38 11.3 13.4 15.7
43 39 11.6 13.7 16.0
44 40 11.9 14.0 16.4
45 41 12.1 14.3 16.8
46 42 12.4 14.6 17.2
47 43 12.7 15.0 17.5
48 44 13.0 15.3 17.9
49 45 13.2 15.6 18.3
50 46 13.5 15.9 18.7
51 47 13.8 16.3 19.0
52 48 14.0 16.6 19.4
53 49 14.3 16.9 19.8
54-5 50 14.9 17.5 20.5
56-7 51 15.4 18.2 21.3
58-9 52 15.9 18.8 22.0
60-1 53 16.5 19.5 22.8
62-3 54 17.0 20.1 23.6
64-5 55 17.6 20.8 24.3
66-7 56 18.1 21.4 25.1
68-9 57 18.7 22.1 25.8
70-1 58 19.2 22.7 26.6
72-3 59 19.8 23.4 27.3
74-5 60 20.3 24.0 28.1
76-7 61 20.9 24.7 28.9
78-9 62 21.4 25.3 29.6
80-1 63 22.0 26.0 30.4
82-3 64 22.5 26.6 31.2
84-5 65 23.1 27.3 31.9
86-7 66 23.6 27.9 32.7
88-9 67 24.2 28.6 33.5
90-1 68 24.7 29.2 34.2
92-3 69 25.3 29.9 35.0
94-5 70 25.9 30.5 35.8
96-7 71 26.4 31.2 36.5
98-9 72 27.0 31.9 37.3
100-1 73 27.5 32.5 38.1
102-3 74 28.1 33.2 38.9
104-5 75 28.7 33.8 39.6
106-7 76 29.2 34.5 40.4
108-9 77 29.8 35.2 41.2
110-1 78 30.3 35.8 42.0
112-3 79 30.9 36.5 42.7
114-5 80 31.5 37.2 43.5
116-7 81 32.0 37.8 44.3
118-9 82 32.6 38.5 45.1
120-1 83 33.2 39.2 45.9
122-3 84 33.7 39.8 46.7
124-5 85 34.3 40.5 47.4
126-7 86 34.9 41.2 48.2
128-9 87 35.4 41.9 49.0
130-1 88 36.0 42.5 49.8
132-3 89 36.6 43.2 50.6
134-5 90 37.1 43.9 51.4
136-8 91 38.0 44.9 52.6
139-41 92 38.9 45.9 53.8
142-4 93 39.7 46.9 55.0
145-7 94 40.6 47.9 56.2
148-50 95 41.5 49.0 57.4
151-3 96 42.3 50.0 58.6
154-6 97 43.2 51.0 59.8
157-9 98 44.1 52.0 61.0
160-2 99 44.9 53.1 62.2
163-5 100 45.8 54.1 63.4
166-8 101 46.7 55.1 64.6
169-71 102 47.6 56.2 65.8
172-4 103 48.4 57.2 67.1
175-7 104 49.3 58.2 68.3
178-80 105 50.2 59.3 69.5
181-3 106 51.1 60.3 70.7
184-6 107 52.0 61.4 72.0
187-9 108 52.9 62.4 73.2
190-2 109 53.8 63.5 74.4
193-5 110 54.7 64.5 75.7
196-8 111 55.5 65.6 76.9
199-201 112 56.4 66.6 78.2
202-4 113 57.3 67.7 79.4
205-7 114 58.2 68.7 80.7
208-10 115 59.1 69.8 81.9
211-3 116 60.1 70.9 83.2
214-6 117 61.0 71.9 84.4
217-9 118 61.9 73.0 85.7
220-2 119 62.8 74.1 86.9
223-5 120 63.7 75.2 88.2
226-8 121 64.6 76.2 89.5
229-31 122 65.5 77.3 90.8
232-4 123 66.4 78.4 92.0
235-7 124 67.4 79.5 93.3
238-41 125 68.6 80.9 95.0
242-5 126 69.8 82.4 96.7
246-9 127 71.1 83.8 98.5
250-5 128 72.9 86.0 101.
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