Observation information
- date-obs: 2017-02-21
- time-obs: 12:31:35.417100000
- date-end: 2017-02-21
- time-end: 16:21:40.424500000
- obs_id: A02_024T01_9000001044
- exposure: 6972.54322916
- sourceid: NGC 4388
- observer: labani
- ra_pnt: 186.4448
- dec_pnt: 12.66209
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_024T01_9000001044_07586cztM0_level2.evt
| modeM0/AS1A02_024T01_9000001044_07586cztM0_level2_quad_clean.evt
|
| Size (bytes) | 984,219,840 | 144,593,280 |
| Size | 938.6 MB
| 137.9 MB
|
| Events in quadrant A | 7,081,436 | 906,646 |
| Events in quadrant B | 5,770,584 | 922,439 |
| Events in quadrant C | 7,078,942 | 915,769 |
| Events in quadrant D | 9,103,903 | 842,551 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 234 | 0 |
| B | 0 | 234 | 0 |
| C | 0 | 234 | 0 |
| D | 0 | 234 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28413 | 4 |
| B | 0 | 24425 | 3 |
| C | 0 | 28492 | 3 |
| D | 0 | 34756 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 24 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11435 | 202 | 1.766506% |
| B | 11435 | 133 | 1.163096% |
| C | 11435 | 360 | 3.148229% |
| D | 11435 | 1018 | 8.902492% |
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 | 13805 | 11437 | 0 | 0 | 0.00% | 0.00% |  |
| B | 13805 | 11437 | 3 | 3 | 0.02% | 0.03% |  |
| C | 13805 | 11437 | 122 | 122 | 0.88% | 1.07% |  |
| D | 13805 | 11437 | 795 | 795 | 5.76% | 6.95% |  |
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 | 1499214 | 5165.15 | 1445 | 1416 | 290.0 |
| A | 0 | 128 | 15025 | 46.93 | 1445 | 1416 | 290.0 |
| A | 3 | 1 | 14065 | 43.62 | 1445 | 1416 | 290.0 |
| B | 0 | 214 | 42517 | 148.92 | 1457 | 1424 | 275.9 |
| B | 11 | 51 | 29037 | 100.07 | 1457 | 1424 | 275.9 |
| B | 12 | 111 | 28216 | 97.09 | 1457 | 1424 | 275.9 |
| C | 9 | 68 | 1497859 | 4593.55 | 1414 | 1427 | 325.8 |
| C | 8 | 229 | 39137 | 115.76 | 1414 | 1427 | 325.8 |
| C | 1 | 16 | 24649 | 71.28 | 1414 | 1427 | 325.8 |
| D | 2 | 14 | 1946629 | 5718.23 | 1386 | 1347 | 340.2 |
| D | 2 | 152 | 1545766 | 4539.88 | 1386 | 1347 | 340.2 |
| D | 5 | 233 | 128882 | 374.89 | 1386 | 1347 | 340.2 |
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 |  |