/[PAMELA software]/tracker/ground/doc/LEVEL2-R2.txt
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Annotation of /tracker/ground/doc/LEVEL2-R2.txt

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Revision 1.1.1.1 - (hide annotations) (download) (vendor branch)
Wed Mar 8 15:00:36 2006 UTC (18 years, 8 months ago) by pam-fi
Branch: MAIN, trk-ground
CVS Tags: R3v02, HEAD
Changes since 1.1: +0 -0 lines
File MIME type: text/plain
First CVS release of tracker ground software (R3v02) 

1 pam-fi 1.1 ===========
2     LEVEL2 data
3     *
4     (R-2.00)
5     ===========
6    
7     LEVEL2 nt-uple structure:
8    
9     ******************************************************************
10     * Ntuple ID = 22 Entries = 5680 LEVEL2
11     ******************************************************************
12     * Var numb * Type * Packing * Range * Block * Name *
13     ******************************************************************
14     * 1 * L*4 * 1 * * EVENT * GOOD2
15     * 2 * I*4 * * * EVENT * NEV2
16     * 1 * U*4 * 6 * [0,50] * CPU * PKT_TYPE
17     * 2 * I*4 * * * CPU * PKT_NUM
18     * 3 * I*4 * * * CPU * OBT
19     * 4 * U*4 * 6 * [0,50] * CPU * WHICH_CALIB
20     * 1 * I*4 * * [0,50] * TRACKS * NTRK
21     * 2 * U*4 * 6 * [0,50] * TRACKS * IMAGE(NTRK)
22     * 3 * R*4 * * * TRACKS * XM(6,NTRK)
23     * 4 * R*4 * * * TRACKS * YM(6,NTRK)
24     * 5 * R*4 * * * TRACKS * ZM(6,NTRK)
25     * 6 * R*4 * * * TRACKS * RESX(6,NTRK)
26     * 7 * R*4 * * * TRACKS * RESY(6,NTRK)
27     * 8 * R*4 * * * TRACKS * AL(5,NTRK)
28     * 9 * R*4 * * * TRACKS * COVAL(5,5,NTRK)
29     * 10 * R*4 * * * TRACKS * CHI2(NTRK)
30     * 11 * U*4 * 1 * [0,1] * TRACKS * XGOOD(6,NTRK)
31     * 12 * U*4 * 1 * [0,1] * TRACKS * YGOOD(6,NTRK)
32     * 13 * R*4 * * * TRACKS * XV(6,NTRK)
33     * 14 * R*4 * * * TRACKS * YV(6,NTRK)
34     * 15 * R*4 * * * TRACKS * ZV(6,NTRK)
35     * 16 * R*4 * * * TRACKS * AXV(6,NTRK)
36     * 17 * R*4 * * * TRACKS * AYV(6,NTRK)
37     * 18 * R*4 * * * TRACKS * DEDXP(6,NTRK)
38     * 1 * I*4 * * * SINGLETS * NCLSX(6)
39     * 2 * I*4 * * * SINGLETS * NCLSY(6)
40     ******************************************************************
41     * Block * Entries * Unpacked * Packed * Packing Factor *
42     ******************************************************************
43     * EVENT * 5680 * 8 * 5 * 1.600 *
44     * CPU * 5680 * 16 * 10 * 1.600 *
45     * TRACKS * 5680 * 22004 * Var. * Variable *
46     * SINGLETS * 5680 * 48 * 48 * 1.000 *
47     * Total * --- * 22076 * Var. * Variable *
48     ******************************************************************
49     * Blocks = 4 Variables = 26 Max. Columns = 5519 *
50     ******************************************************************
51    
52    
53     The EVENT block stores the global event flag GOOD2 and the event counter NEV2.
54    
55     The CPU block stores the event tag extracted from the physics-packet
56     CPU-header (PKT_TYPE, PKT_NUM, OBT) and a variable that relates each event to
57     the calibration parameters (WHICH_CALIB).
58     (If WHICH_CALIB=0 (missing calibration) then GOOD2=.FALSE.)
59    
60     The TRACKS block stores track information:
61     NTRK - number of identified tracks (in case the Y ambiguity is not
62     solved both the track images are stored)
63     IMAGE(NTRK) - ID of the track image (=0 if no image)
64     XM(6,NTRK) - measured coordinates associated to the track
65     YM(6,NTRK) '
66     ZM(6,NTRK) '
67     RESX(6,NTRK) - spatial resolution associated to each coordinate
68     RESY(6,NTRK) '
69     AL(5,NTRK) - TRACK PARAMETERS: X0,Y0,sin(THETA0),PHI0,DEFLECTION
70     COVAL(5,5,NTRK)- Variance/covariance matrix of parameters
71     CHI2(NTRK) - reduced chi^2 of the track
72     XGOOD(6,NTRK) - flag indicating if a plane was included in the track fitting
73     YGOOD(6,NTRK) '
74     XV(6,NTRK) - calculated coordinates
75     YV(6,NTRK) '
76     ZV(6,NTRK) '
77     AXV(6,NTRK) - calculated angles
78     AYV(6,NTRK) '
79     DEDXP(6,NTRK) - average energy release
80    
81     The SINGLETS block stores information about those clusters not associated with
82     any track:
83     NCLSX(6) - number of singlets in each plane
84     NCLSY(6) '
85    

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