Observation information
- date-obs: 2018-03-13
- time-obs: 09:22:34.791900000
- date-end: 2018-03-14
- time-end: 10:52:48.791100000
- obs_id: T02_013T01_9000001976
- exposure: 41939.0758255
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T02_013T01_9000001976cztM0_level2_bc.evt
| modeM0/AS1T02_013T01_9000001976cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,672,054,720 | 959,693,760 |
Size | 3.4 GB
| 915.2 MB
|
Events in quadrant A | 19,963,655 | 6,946,172 |
Events in quadrant B | 31,595,006 | 3,394,665 |
Events in quadrant C | 17,665,079 | 6,951,507 |
Events in quadrant D | 36,566,115 | 6,324,972 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 125 | 0 |
B | 0 | 125 | 0 |
C | 0 | 125 | 0 |
D | 0 | 125 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 174647 | 0 |
B | 0 | 308363 | 0 |
C | 0 | 167018 | 0 |
D | 0 | 232799 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1614 | 0 |
B | 0 | 1614 | 0 |
C | 0 | 1614 | 0 |
D | 0 | 1614 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 79305 | 1098 | 1.384528% |
B | 79280 | 33044 | 41.680121% |
C | 79305 | 752 | 0.948238% |
D | 79305 | 4867 | 6.137066% |
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 | 91816 | 79309 | 17 | 17 | 0.02% | 0.02% |  |
B | 91816 | 74842 | 867 | 867 | 0.94% | 1.16% |  |
C | 91816 | 79309 | 18 | 18 | 0.02% | 0.02% |  |
D | 91816 | 79307 | 785 | 785 | 0.85% | 0.99% |  |
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 | 8 | 15 | 2783397 | 2907.31 | 4261 | 4171 | 955.9 |
A | 15 | 69 | 364373 | 376.8 | 4261 | 4171 | 955.9 |
A | 1 | 162 | 202499 | 207.47 | 4261 | 4171 | 955.9 |
B | 4 | 239 | 19252409 | 36009.24 | 2801 | 2738 | 534.6 |
B | 10 | 245 | 290539 | 538.37 | 2801 | 2738 | 534.6 |
B | 3 | 64 | 253224 | 468.57 | 2801 | 2738 | 534.6 |
C | 15 | 208 | 975454 | 1022.59 | 4217 | 4202 | 949.8 |
C | 14 | 234 | 174588 | 179.39 | 4217 | 4202 | 949.8 |
C | 6 | 96 | 25623 | 22.55 | 4217 | 4202 | 949.8 |
D | 1 | 52 | 6683859 | 6757.18 | 4118 | 3980 | 988.6 |
D | 13 | 104 | 4668804 | 4718.81 | 4118 | 3980 | 988.6 |
D | 5 | 222 | 3046124 | 3077.35 | 4118 | 3980 | 988.6 |
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 |  |