Observation information
- date-obs: 2017-01-12
- time-obs: 07:23:15.885100000
- date-end: 2017-01-12
- time-end: 09:35:12.883500000
- obs_id: T01_151T01_9000000960
- exposure: 4051.74435531
- sourceid: ngc1275
- observer: varsha
- ra_pnt: 49.95067
- dec_pnt: 41.5117
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T01_151T01_9000000960_06990cztM0_level2.evt
| modeM0/AS1T01_151T01_9000000960_06990cztM0_level2_quad_clean.evt
|
| Size (bytes) | 450,527,040 | 85,089,600 |
| Size | 429.7 MB
| 81.1 MB
|
| Events in quadrant A | 3,198,695 | 541,928 |
| Events in quadrant B | 3,562,863 | 548,347 |
| Events in quadrant C | 3,070,203 | 530,000 |
| Events in quadrant D | 3,383,187 | 515,553 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13321 | 3 |
| B | 0 | 14428 | 2 |
| C | 0 | 13153 | 2 |
| D | 0 | 13901 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6319 | 103 | 1.630005% |
| B | 6319 | 236 | 3.734768% |
| C | 6319 | 54 | 0.854566% |
| D | 6319 | 86 | 1.360975% |
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 | 7614 | 6320 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7614 | 6320 | 104 | 104 | 1.37% | 1.65% |  |
| C | 7614 | 6320 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7614 | 6320 | 32 | 32 | 0.42% | 0.51% |  |
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 | 234 | 11586 | 64.97 | 826 | 807 | 165.9 |
| A | 13 | 14 | 9241 | 50.83 | 826 | 807 | 165.9 |
| A | 0 | 226 | 8047 | 43.64 | 826 | 807 | 165.9 |
| B | 4 | 81 | 247598 | 1599.54 | 820 | 804 | 154.3 |
| B | 0 | 214 | 53031 | 338.5 | 820 | 804 | 154.3 |
| B | 10 | 252 | 21388 | 133.41 | 820 | 804 | 154.3 |
| C | 13 | 61 | 6278 | 30.53 | 785 | 789 | 179.8 |
| C | 12 | 4 | 3213 | 13.48 | 785 | 789 | 179.8 |
| C | 7 | 247 | 2363 | 8.75 | 785 | 789 | 179.8 |
| D | 8 | 195 | 178351 | 916.11 | 794 | 771 | 193.8 |
| D | 2 | 33 | 59935 | 305.22 | 794 | 771 | 193.8 |
| D | 9 | 68 | 57195 | 291.08 | 794 | 771 | 193.8 |
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 |  |