Observation information
- date-obs: 2015-10-16
- time-obs: 09:17:35.631900000
- date-end: 2015-10-17
- time-end: 03:54:14.642800000
- obs_id: P01_126T01_9000000030
- exposure: 32316.7781485
- sourceid: Crab-SSM1-P1
- observer: ramadevi
- ra_pnt: 80.3923
- dec_pnt: -68.1274
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1P01_126T01_9000000030cztM0_level2_bc.evt
| modeM0/AS1P01_126T01_9000000030cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,548,662,400 | 515,928,960 |
Size | 1.4 GB
| 492.0 MB
|
Events in quadrant A | 11,035,543 | 3,086,054 |
Events in quadrant B | 9,855,256 | 3,135,148 |
Events in quadrant C | 9,124,548 | 3,060,624 |
Events in quadrant D | 13,509,211 | 2,948,412 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 213236 | 0 |
B | 0 | 207591 | 0 |
C | 0 | 194881 | 0 |
D | 0 | 201312 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1008 | 0 |
B | 0 | 1008 | 0 |
C | 0 | 1008 | 0 |
D | 0 | 1008 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 175 | 0 |
B | 0 | 175 | 0 |
C | 0 | 175 | 0 |
D | 0 | 176 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 49492 | 209 | 0.422290% |
B | 49492 | 42 | 0.084862% |
C | 49492 | 66 | 0.133355% |
D | 49492 | 785 | 1.586115% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 66635 | 49491 | 100 | 100 | 0.15% | 0.20% |  |
B | 66635 | 49491 | 7 | 7 | 0.01% | 0.01% |  |
C | 66635 | 49491 | 21 | 21 | 0.03% | 0.04% |  |
D | 66635 | 49491 | 44 | 44 | 0.07% | 0.09% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 12 | 149 | 1541809 | 3530.83 | 2092 | 2047 | 436.1 |
A | 15 | 127 | 508120 | 1160.48 | 2092 | 2047 | 436.1 |
A | 8 | 65 | 250375 | 569.44 | 2092 | 2047 | 436.1 |
B | 5 | 176 | 410832 | 1062.17 | 2157 | 2092 | 384.8 |
B | 5 | 46 | 206509 | 531.21 | 2157 | 2092 | 384.8 |
B | 0 | 157 | 137809 | 352.68 | 2157 | 2092 | 384.8 |
C | 14 | 48 | 413623 | 939.83 | 2071 | 2031 | 437.9 |
C | 3 | 159 | 136723 | 307.56 | 2071 | 2031 | 437.9 |
C | 9 | 68 | 134857 | 303.29 | 2071 | 2031 | 437.9 |
D | 13 | 7 | 1990288 | 4407.78 | 2036 | 1973 | 451.1 |
D | 1 | 4 | 483576 | 1067.64 | 2036 | 1973 | 451.1 |
D | 1 | 5 | 456808 | 1008.3 | 2036 | 1973 | 451.1 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |