Observation information
- date-obs: 2018-07-31
- time-obs: 02:18:06.346600000
- date-end: 2018-07-31
- time-end: 08:20:53.340000000
- obs_id: A04_126T01_9000002262
- exposure: 12147.4412583
- sourceid: 4U 1735-44
- observer: anjali
- ra_pnt: 264.7429
- dec_pnt: -44.45
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_126T01_9000002262_15351cztM0_level2.evt
| modeM0/AS1A04_126T01_9000002262_15351cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,319,250,240 | 240,687,360 |
| Size | 1.2 GB
| 229.5 MB
|
| Events in quadrant A | 8,852,832 | 1,493,398 |
| Events in quadrant B | 9,719,545 | 1,505,689 |
| Events in quadrant C | 10,173,954 | 1,512,590 |
| Events in quadrant D | 9,894,667 | 1,440,921 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 24 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 39691 | 5 |
| B | 0 | 41460 | 4 |
| C | 0 | 42366 | 4 |
| D | 0 | 43377 | 4 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 396 | 0 |
| B | 0 | 396 | 0 |
| C | 0 | 396 | 0 |
| D | 0 | 396 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 19412 | 175 | 0.901504% |
| B | 19412 | 321 | 1.653616% |
| C | 19412 | 209 | 1.076654% |
| D | 19412 | 452 | 2.328457% |
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 | 21768 | 19415 | 1 | 1 | 0.00% | 0.01% |  |
| B | 21768 | 19414 | 56 | 56 | 0.26% | 0.29% |  |
| C | 21768 | 19415 | 1 | 1 | 0.00% | 0.01% |  |
| D | 21768 | 19414 | 269 | 269 | 1.24% | 1.39% |  |
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 | 9 | 143 | 41180 | 84.11 | 2284 | 2230 | 463.1 |
| A | 15 | 239 | 32077 | 64.46 | 2284 | 2230 | 463.1 |
| A | 0 | 226 | 19767 | 37.87 | 2284 | 2230 | 463.1 |
| B | 3 | 64 | 187259 | 426.17 | 2284 | 2226 | 434.2 |
| B | 10 | 247 | 103665 | 233.63 | 2284 | 2226 | 434.2 |
| B | 0 | 230 | 81334 | 182.2 | 2284 | 2226 | 434.2 |
| C | 3 | 233 | 1459988 | 2831.13 | 2229 | 2240 | 514.9 |
| C | 7 | 247 | 30922 | 55.7 | 2229 | 2240 | 514.9 |
| C | 13 | 61 | 16191 | 27.09 | 2229 | 2240 | 514.9 |
| D | 2 | 33 | 872155 | 1611.73 | 2213 | 2145 | 539.8 |
| D | 1 | 255 | 166884 | 305.19 | 2213 | 2145 | 539.8 |
| D | 10 | 70 | 150131 | 274.15 | 2213 | 2145 | 539.8 |
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 |  |