Observation information
- date-obs: 2017-07-29
- time-obs: 15:31:29.010100000
- date-end: 2017-07-29
- time-end: 16:36:42.020300000
- obs_id: A02_029T01_9000001416
- exposure: 1471.77614206
- sourceid: 4U 1724-30
- observer: sudip
- ra_pnt: 261.8885
- dec_pnt: -30.80206
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_029T01_9000001416_09924cztM0_level2.evt
| modeM0/AS1A02_029T01_9000001416_09924cztM0_level2_quad_clean.evt
|
| Size (bytes) | 230,587,200 | 33,341,760 |
| Size | 219.9 MB
| 31.8 MB
|
| Events in quadrant A | 1,766,798 | 204,218 |
| Events in quadrant B | 1,556,476 | 207,732 |
| Events in quadrant C | 1,411,009 | 202,692 |
| Events in quadrant D | 2,048,380 | 185,616 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 62 | 0 |
| B | 0 | 62 | 0 |
| C | 0 | 62 | 0 |
| D | 0 | 62 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7209 | 5 |
| B | 0 | 6515 | 6 |
| C | 0 | 6055 | 1 |
| D | 0 | 8086 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2922 | 69 | 2.361396% |
| B | 2921 | 47 | 1.609038% |
| C | 2923 | 22 | 0.752651% |
| D | 2923 | 126 | 4.310640% |
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 | 3913 | 2923 | 21 | 21 | 0.54% | 0.72% |  |
| B | 3913 | 2923 | 2 | 2 | 0.05% | 0.07% |  |
| C | 3913 | 2923 | 0 | 0 | 0.00% | 0.00% |  |
| D | 3913 | 2923 | 91 | 91 | 2.33% | 3.11% |  |
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 | 15 | 239 | 314015 | 4058.01 | 373 | 365 | 77.3 |
| A | 8 | 15 | 14192 | 178.89 | 373 | 365 | 77.3 |
| A | 0 | 226 | 3455 | 39.98 | 373 | 365 | 77.3 |
| B | 0 | 214 | 25231 | 334.16 | 373 | 363 | 74.4 |
| B | 4 | 239 | 22982 | 303.94 | 373 | 363 | 74.4 |
| B | 4 | 81 | 21200 | 279.99 | 373 | 363 | 74.4 |
| C | 13 | 61 | 2711 | 27.23 | 361 | 362 | 86.3 |
| C | 14 | 67 | 2353 | 23.08 | 361 | 362 | 86.3 |
| C | 3 | 202 | 889 | 6.11 | 361 | 362 | 86.3 |
| D | 8 | 195 | 293218 | 3340.24 | 353 | 342 | 87.7 |
| D | 2 | 16 | 170636 | 1942.2 | 353 | 342 | 87.7 |
| D | 1 | 52 | 132619 | 1508.62 | 353 | 342 | 87.7 |
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 |  |