Observation information
- date-obs: 2017-01-12
- time-obs: 14:25:24.882700000
- date-end: 2017-01-12
- time-end: 16:35:48.883500000
- obs_id: T01_151T01_9000000960
- exposure: 5187.5996792
- 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_06994cztM0_level2.evt
| modeM0/AS1T01_151T01_9000000960_06994cztM0_level2_quad_clean.evt
|
| Size (bytes) | 496,154,880 | 100,480,320 |
| Size | 473.2 MB
| 95.8 MB
|
| Events in quadrant A | 3,549,641 | 643,472 |
| Events in quadrant B | 3,789,924 | 641,800 |
| Events in quadrant C | 3,335,092 | 631,643 |
| Events in quadrant D | 3,852,490 | 614,895 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
| 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 | 15595 | 2 |
| B | 0 | 16040 | 1 |
| C | 0 | 15218 | 1 |
| D | 0 | 16058 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7344 | 181 | 2.464597% |
| B | 7344 | 179 | 2.437364% |
| C | 7344 | 111 | 1.511438% |
| D | 7344 | 149 | 2.028867% |
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 | 7824 | 7345 | 14 | 14 | 0.18% | 0.19% |  |
| B | 7824 | 7345 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7824 | 7345 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7824 | 7345 | 10 | 10 | 0.13% | 0.14% |  |
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 | 13 | 248 | 126720 | 700.63 | 881 | 860 | 179.6 |
| A | 14 | 239 | 21833 | 116.75 | 881 | 860 | 179.6 |
| A | 0 | 226 | 8536 | 42.73 | 881 | 860 | 179.6 |
| B | 0 | 228 | 161525 | 936.14 | 885 | 863 | 171.6 |
| B | 0 | 214 | 125233 | 724.67 | 885 | 863 | 171.6 |
| B | 4 | 173 | 37492 | 213.43 | 885 | 863 | 171.6 |
| C | 13 | 61 | 6723 | 29.49 | 854 | 857 | 198.9 |
| C | 1 | 16 | 3493 | 13.25 | 854 | 857 | 198.9 |
| C | 3 | 202 | 2157 | 6.54 | 854 | 857 | 198.9 |
| D | 8 | 195 | 375070 | 1770.82 | 864 | 836 | 211.3 |
| D | 12 | 233 | 59201 | 276.17 | 864 | 836 | 211.3 |
| D | 14 | 34 | 57407 | 267.69 | 864 | 836 | 211.3 |
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 |  |