Observation information
- date-obs: 2017-09-26
- time-obs: 14:19:54.525100000
- date-end: 2017-09-26
- time-end: 16:40:56.524000000
- obs_id: A03_071T01_9000001562
- exposure: 3960.3352334
- 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_10798cztM0_level2.evt
| modeM0/AS1A03_071T01_9000001562_10798cztM0_level2_quad_clean.evt
|
| Size (bytes) | 546,742,080 | 84,625,920 |
| Size | 521.4 MB
| 80.7 MB
|
| Events in quadrant A | 3,182,954 | 536,659 |
| Events in quadrant B | 4,657,675 | 534,786 |
| Events in quadrant C | 3,150,157 | 556,795 |
| Events in quadrant D | 5,147,228 | 501,432 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 23 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13452 | 3 |
| B | 0 | 18177 | 2 |
| C | 0 | 13267 | 2 |
| D | 0 | 19367 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6199 | 103 | 1.661558% |
| B | 6199 | 440 | 7.097919% |
| C | 6199 | 77 | 1.242136% |
| D | 6199 | 499 | 8.049685% |
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 | 7484 | 6200 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7484 | 6200 | 202 | 202 | 2.70% | 3.26% |  |
| C | 7484 | 6200 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7484 | 6200 | 388 | 388 | 5.18% | 6.26% |  |
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 | 174 | 34030 | 204.35 | 806 | 791 | 162.7 |
| A | 8 | 15 | 27637 | 165.05 | 806 | 791 | 162.7 |
| A | 4 | 2 | 7582 | 41.75 | 806 | 791 | 162.7 |
| B | 4 | 239 | 952643 | 6444.25 | 798 | 781 | 147.7 |
| B | 15 | 204 | 209274 | 1411.53 | 798 | 781 | 147.7 |
| B | 0 | 85 | 197066 | 1328.88 | 798 | 781 | 147.7 |
| C | 14 | 234 | 26728 | 142.72 | 798 | 805 | 181.6 |
| C | 13 | 61 | 5971 | 28.44 | 798 | 805 | 181.6 |
| C | 14 | 67 | 5515 | 25.93 | 798 | 805 | 181.6 |
| D | 13 | 138 | 874371 | 4732.82 | 774 | 754 | 184.6 |
| D | 1 | 52 | 606677 | 3282.58 | 774 | 754 | 184.6 |
| D | 10 | 253 | 221747 | 1197.23 | 774 | 754 | 184.6 |
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 |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |