Observation information
- date-obs: 2018-01-20
- time-obs: 23:15:09.421100000
- date-end: 2018-01-21
- time-end: 00:53:49.460300000
- obs_id: A04_230T01_9000001854
- exposure: 3693.22151104
- sourceid: Her X-1
- observer: sumanbala
- ra_pnt: 254.4575
- dec_pnt: 35.34233
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_230T01_9000001854_12520cztM0_level2.evt
| modeM0/AS1A04_230T01_9000001854_12520cztM0_level2_quad_clean.evt
|
| Size (bytes) | 376,289,280 | 76,455,360 |
| Size | 358.9 MB
| 72.9 MB
|
| Events in quadrant A | 2,247,418 | 511,628 |
| Events in quadrant B | 2,478,748 | 521,184 |
| Events in quadrant C | 2,177,203 | 511,225 |
| Events in quadrant D | 4,185,151 | 453,760 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 92 | 0 |
| B | 0 | 92 | 0 |
| C | 0 | 92 | 0 |
| D | 0 | 92 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9491 | 2 |
| B | 0 | 10241 | 1 |
| C | 0 | 9513 | 1 |
| D | 0 | 15544 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4514 | 38 | 0.841825% |
| B | 4514 | 71 | 1.572884% |
| C | 4514 | 20 | 0.443066% |
| D | 4514 | 755 | 16.725742% |
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 | 5921 | 4516 | 0 | 0 | 0.00% | 0.00% |  |
| B | 5921 | 4516 | 9 | 9 | 0.15% | 0.20% |  |
| C | 5921 | 4516 | 1 | 1 | 0.02% | 0.02% |  |
| D | 5921 | 4516 | 612 | 612 | 10.34% | 13.55% |  |
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 | 189 | 51731 | 447.53 | 564 | 553 | 114.4 |
| A | 1 | 162 | 11323 | 94.18 | 564 | 553 | 114.4 |
| A | 8 | 6 | 6879 | 55.32 | 564 | 553 | 114.4 |
| B | 4 | 239 | 176204 | 1647.02 | 566 | 553 | 106.6 |
| B | 0 | 214 | 64639 | 600.91 | 566 | 553 | 106.6 |
| B | 5 | 250 | 26825 | 246.34 | 566 | 553 | 106.6 |
| C | 15 | 208 | 29386 | 226.68 | 548 | 554 | 127.2 |
| C | 14 | 234 | 6956 | 50.33 | 548 | 554 | 127.2 |
| C | 3 | 233 | 4342 | 29.78 | 548 | 554 | 127.2 |
| D | 7 | 80 | 1400248 | 12037.21 | 485 | 472 | 116.3 |
| D | 1 | 52 | 815554 | 7009.2 | 485 | 472 | 116.3 |
| D | 13 | 249 | 45136 | 384.08 | 485 | 472 | 116.3 |
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 |  |