Observation information
- date-obs: 2016-06-10
- time-obs: 17:39:52.200600000
- date-end: 2016-06-10
- time-end: 21:33:51.195000000
- obs_id: G05_194T01_9000000490
- exposure: 8667.75712398
- sourceid: 4U 1957+115
- observer: dedhia
- ra_pnt: 299.8509
- dec_pnt: 11.709
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G05_194T01_9000000490_03800cztM0_level2.evt
| modeM0/AS1G05_194T01_9000000490_03800cztM0_level2_quad_clean.evt
|
| Size (bytes) | 929,960,640 | 144,388,800 |
| Size | 886.9 MB
| 137.7 MB
|
| Events in quadrant A | 8,425,474 | 889,356 |
| Events in quadrant B | 6,970,431 | 886,768 |
| Events in quadrant C | 5,755,699 | 872,261 |
| Events in quadrant D | 6,153,707 | 846,961 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 260 | 0 |
| B | 0 | 260 | 0 |
| C | 0 | 260 | 0 |
| D | 0 | 260 | 0 |
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 33410 | 3 |
| B | 0 | 29260 | 5 |
| C | 0 | 26061 | 2 |
| D | 0 | 27616 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 12689 | 299 | 2.356372% |
| B | 12688 | 120 | 0.945776% |
| C | 12689 | 78 | 0.614706% |
| D | 12689 | 150 | 1.182126% |
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 | 14039 | 12690 | 181 | 181 | 1.29% | 1.43% |  |
| B | 14039 | 12690 | 8 | 8 | 0.06% | 0.06% |  |
| C | 14039 | 12690 | 16 | 16 | 0.11% | 0.13% |  |
| D | 14039 | 12690 | 107 | 107 | 0.76% | 0.84% |  |
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 | 13 | 251 | 2272361 | 7646.76 | 1453 | 1423 | 297.0 |
| A | 0 | 118 | 262637 | 879.57 | 1453 | 1423 | 297.0 |
| A | 0 | 50 | 218077 | 729.52 | 1453 | 1423 | 297.0 |
| B | 15 | 204 | 956291 | 3349.81 | 1481 | 1443 | 285.0 |
| B | 14 | 167 | 159331 | 553.91 | 1481 | 1443 | 285.0 |
| B | 4 | 81 | 53051 | 181.05 | 1481 | 1443 | 285.0 |
| C | 9 | 247 | 87803 | 258.52 | 1420 | 1425 | 334.1 |
| C | 10 | 65 | 49439 | 143.7 | 1420 | 1425 | 334.1 |
| C | 12 | 4 | 27102 | 76.85 | 1420 | 1425 | 334.1 |
| D | 13 | 239 | 277902 | 807.13 | 1411 | 1367 | 342.6 |
| D | 13 | 223 | 150012 | 433.85 | 1411 | 1367 | 342.6 |
| D | 14 | 34 | 89375 | 256.87 | 1411 | 1367 | 342.6 |
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 |  |
| Veto Counter |  |