Observation information
- date-obs: 2017-09-26
- time-obs: 09:13:14.529800000
- date-end: 2017-09-26
- time-end: 11:30:47.527200000
- obs_id: A03_071T01_9000001562
- exposure: 3072.33786274
- 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_10795cztM0_level2.evt
| modeM0/AS1A03_071T01_9000001562_10795cztM0_level2_quad_clean.evt
|
| Size (bytes) | 508,144,320 | 67,956,480 |
| Size | 484.6 MB
| 64.8 MB
|
| Events in quadrant A | 3,242,964 | 402,273 |
| Events in quadrant B | 4,375,520 | 402,361 |
| Events in quadrant C | 3,115,199 | 409,338 |
| Events in quadrant D | 4,211,490 | 387,003 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13849 | 3 |
| B | 0 | 17347 | 2 |
| C | 0 | 13508 | 2 |
| D | 0 | 16814 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6540 | 84 | 1.284404% |
| B | 6540 | 339 | 5.183486% |
| C | 6540 | 67 | 1.024465% |
| D | 6540 | 169 | 2.584098% |
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 | 7665 | 6540 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7665 | 6540 | 147 | 147 | 1.92% | 2.25% |  |
| C | 7665 | 6541 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7665 | 6540 | 80 | 80 | 1.04% | 1.22% |  |
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 | 15 | 26273 | 154.38 | 824 | 808 | 164.9 |
| A | 13 | 248 | 17987 | 104.15 | 824 | 808 | 164.9 |
| A | 15 | 174 | 10551 | 59.06 | 824 | 808 | 164.9 |
| B | 4 | 239 | 979459 | 6426.51 | 810 | 792 | 152.3 |
| B | 0 | 219 | 111379 | 726.18 | 810 | 792 | 152.3 |
| B | 0 | 214 | 41351 | 266.33 | 810 | 792 | 152.3 |
| C | 14 | 234 | 9463 | 47.65 | 794 | 799 | 181.8 |
| C | 13 | 61 | 5905 | 28.08 | 794 | 799 | 181.8 |
| C | 8 | 222 | 3139 | 12.87 | 794 | 799 | 181.8 |
| D | 8 | 195 | 415374 | 2197.78 | 789 | 767 | 188.6 |
| D | 13 | 138 | 263825 | 1394.44 | 789 | 767 | 188.6 |
| D | 10 | 253 | 183193 | 967.02 | 789 | 767 | 188.6 |
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 |  |