Observation information
- date-obs: 2015-11-14
- time-obs: 11-45-53.000008218
- date-end: 2015-11-14
- time-end: 12-54-29.000008193
- obs_id: P01_141T01_9000000100
- exposure: 1977.79723808
- sourceid: Crab
- observer: santoshv
- ra_pnt: 83.62586
- dec_pnt: 22.02464
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_141T01_9000000100_00702cztM0_level2.evt
| modeM0/AS1P01_141T01_9000000100_00702cztM0_level2_quad_clean.evt
|
| Size (bytes) | 692,628,480 | 36,440,640 |
| Size | 660.5 MB
| 34.8 MB
|
| Events in quadrant A | 5,082,116 | 207,111 |
| Events in quadrant B | 5,017,544 | 210,444 |
| Events in quadrant C | 5,505,286 | 206,002 |
| Events in quadrant D | 5,105,620 | 197,001 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17935 | 1 |
| B | 0 | 17736 | 1 |
| C | 0 | 19185 | 1 |
| D | 0 | 18013 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 80 | 0 |
| B | 0 | 80 | 0 |
| C | 0 | 80 | 0 |
| D | 0 | 80 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3999 | 8 | 0.200050% |
| B | 3999 | 3 | 0.075019% |
| C | 3999 | 4 | 0.100025% |
| D | 3999 | 7 | 0.175044% |
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 | 3999 | 3999 | 216 | 216 | 5.40% | 5.40% |  |
| B | 3999 | 3999 | 152 | 152 | 3.80% | 3.80% |  |
| C | 3999 | 3999 | 173 | 173 | 4.33% | 4.33% |  |
| D | 3999 | 3999 | 111 | 111 | 2.78% | 2.78% |  |
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 | 10 | 216 | 431758 | 1459.9 | 1209 | 1219 | 294.9 |
| A | 13 | 8 | 4749 | 11.97 | 1209 | 1219 | 294.9 |
| A | 15 | 171 | 4258 | 10.3 | 1209 | 1219 | 294.9 |
| B | 7 | 221 | 89226 | 295.17 | 1264 | 1272 | 298.0 |
| B | 5 | 247 | 53355 | 174.79 | 1264 | 1272 | 298.0 |
| B | 0 | 220 | 27596 | 88.34 | 1264 | 1272 | 298.0 |
| C | 3 | 31 | 211307 | 642.25 | 1167 | 1213 | 327.1 |
| C | 3 | 95 | 210463 | 639.67 | 1167 | 1213 | 327.1 |
| C | 3 | 15 | 163944 | 497.46 | 1167 | 1213 | 327.1 |
| D | 0 | 25 | 769745 | 2234.51 | 1111 | 1149 | 344.0 |
| D | 9 | 52 | 64942 | 185.46 | 1111 | 1149 | 344.0 |
| D | 1 | 4 | 46514 | 131.89 | 1111 | 1149 | 344.0 |
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 |  |