Observation information
- date-obs: 2018-01-17
- time-obs: 00:50:49.218700000
- date-end: 2018-01-17
- time-end: 02:50:17.224200000
- obs_id: A04_174T01_9000001850
- exposure: 3069.96839286
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001850_12462cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12462cztM0_level2_quad_clean.evt
|
| Size (bytes) | 692,421,120 | 76,936,320 |
| Size | 660.3 MB
| 73.4 MB
|
| Events in quadrant A | 10,341,943 | 383,438 |
| Events in quadrant B | 3,500,700 | 523,485 |
| Events in quadrant C | 2,851,268 | 527,237 |
| Events in quadrant D | 3,881,023 | 486,497 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 34782 | 2 |
| B | 0 | 14049 | 1 |
| C | 0 | 12019 | 1 |
| D | 0 | 15470 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5833 | 3069 | 52.614435% |
| B | 5833 | 247 | 4.234528% |
| C | 5833 | 10 | 0.171438% |
| D | 5833 | 286 | 4.903137% |
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 | 7169 | 5834 | 2712 | 2712 | 37.83% | 46.49% |  |
| B | 7169 | 5835 | 95 | 95 | 1.33% | 1.63% |  |
| C | 7169 | 5835 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7169 | 5835 | 262 | 262 | 3.65% | 4.49% |  |
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 | 0 | 23 | 5548303 | 44961.18 | 602 | 593 | 123.4 |
| A | 13 | 251 | 1762418 | 14278.64 | 602 | 593 | 123.4 |
| A | 0 | 226 | 396969 | 3212.41 | 602 | 593 | 123.4 |
| B | 4 | 239 | 436415 | 3113.14 | 742 | 727 | 140.0 |
| B | 0 | 219 | 49026 | 345.11 | 742 | 727 | 140.0 |
| B | 11 | 51 | 40335 | 283.01 | 742 | 727 | 140.0 |
| C | 13 | 61 | 5519 | 28.14 | 730 | 738 | 169.9 |
| C | 14 | 234 | 3820 | 18.14 | 730 | 738 | 169.9 |
| C | 3 | 202 | 1715 | 5.75 | 730 | 738 | 169.9 |
| D | 1 | 52 | 595730 | 3533.68 | 700 | 682 | 168.4 |
| D | 9 | 85 | 459383 | 2723.98 | 700 | 682 | 168.4 |
| D | 13 | 249 | 86055 | 506.99 | 700 | 682 | 168.4 |
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 |  |