Observation information
- date-obs: 2017-09-26
- time-obs: 22:59:39.526400000
- date-end: 2017-09-27
- time-end: 01:28:04.527100000
- obs_id: A03_071T01_9000001562
- exposure: 4131.5827966
- sourceid: NGC 1275
- observer: debbijoy
- ra_pnt: 49.95067
- dec_pnt: 41.5117
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_071T01_9000001562_10803cztM0_level2.evt
| modeM0/AS1A03_071T01_9000001562_10803cztM0_level2_quad_clean.evt
|
| Size (bytes) | 529,044,480 | 77,319,360 |
| Size | 504.5 MB
| 73.7 MB
|
| Events in quadrant A | 5,731,316 | 421,232 |
| Events in quadrant B | 4,211,330 | 482,392 |
| Events in quadrant C | 2,634,063 | 552,055 |
| Events in quadrant D | 3,063,639 | 492,201 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32204 | 11529 |
| B | 0 | 25600 | 9346 |
| C | 0 | 17400 | 5139 |
| D | 0 | 21053 | 7711 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 174 | 46 |
| B | 0 | 174 | 44 |
| C | 0 | 174 | 54 |
| D | 0 | 174 | 56 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5282 | 1146 | 21.696327% |
| B | 5478 | 560 | 10.222709% |
| C | 5894 | 64 | 1.085850% |
| D | 5648 | 130 | 2.301700% |
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 | 8905 | 6327 | 766 | 766 | 8.60% | 12.11% |  |
| B | 8902 | 6550 | 231 | 231 | 2.59% | 3.53% |  |
| C | 8905 | 6970 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8905 | 6653 | 32 | 32 | 0.36% | 0.48% |  |
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 | 8 | 5 | 3558736 | 31289.82 | 547 | 534 | 113.7 |
| A | 15 | 174 | 52972 | 461.12 | 547 | 534 | 113.7 |
| A | 8 | 15 | 6605 | 53.39 | 547 | 534 | 113.7 |
| B | 4 | 239 | 1285787 | 10695.45 | 621 | 605 | 120.2 |
| B | 0 | 85 | 329572 | 2737.71 | 621 | 605 | 120.2 |
| B | 15 | 204 | 129452 | 1072.28 | 621 | 605 | 120.2 |
| C | 13 | 61 | 4999 | 27.1 | 674 | 677 | 159.5 |
| C | 8 | 222 | 3847 | 19.88 | 674 | 677 | 159.5 |
| C | 12 | 4 | 2097 | 8.91 | 674 | 677 | 159.5 |
| D | 13 | 138 | 235037 | 1533.76 | 629 | 611 | 152.8 |
| D | 8 | 195 | 193317 | 1260.8 | 629 | 611 | 152.8 |
| D | 12 | 233 | 67533 | 437.84 | 629 | 611 | 152.8 |
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 |  |