Observation information
- date-obs: 2025-04-30
- time-obs: 09:02:59.410500000
- date-end: 2025-04-30
- time-end: 10:58:45.024100000
- obs_id: C09_011T05_9000006466
- exposure: 2807.6547116
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C09_011T05_9000006466_52044cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_52044cztM0_level2_quad_clean.evt
|
| Size (bytes) | 928,952,640 | 65,004,480 |
| Size | 885.9 MB
| 62.0 MB
|
| Events in quadrant A | 9,591,324 | 343,671 |
| Events in quadrant B | 5,978,488 | 532,653 |
| Events in quadrant C | 7,029,831 | 432,554 |
| Events in quadrant D | 11,326,042 | 241,634 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32568 | 1 |
| B | 0 | 21918 | 1 |
| C | 0 | 25029 | 1 |
| D | 0 | 37790 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5976 | 2583 | 43.222892% |
| B | 5977 | 883 | 14.773298% |
| C | 5977 | 1397 | 23.372930% |
| D | 5977 | 3343 | 55.931069% |
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 | 6946 | 5976 | 2339 | 2339 | 33.67% | 39.14% |  |
| B | 6946 | 5976 | 729 | 729 | 10.50% | 12.20% |  |
| C | 6947 | 5977 | 1222 | 1222 | 17.59% | 20.45% |  |
| D | 6947 | 5977 | 3037 | 3037 | 43.72% | 50.81% |  |
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 | 7 | 64 | 6520149 | 52497.63 | 496 | 484 | 124.2 |
| A | 7 | 191 | 199571 | 1603.09 | 496 | 484 | 124.2 |
| A | 4 | 3 | 116030 | 930.4 | 496 | 484 | 124.2 |
| B | 10 | 128 | 2252761 | 17930.72 | 587 | 569 | 125.6 |
| B | 12 | 32 | 414399 | 3294.69 | 587 | 569 | 125.6 |
| B | 5 | 172 | 179957 | 1428.19 | 587 | 569 | 125.6 |
| C | 15 | 224 | 2334496 | 15505.91 | 543 | 537 | 150.5 |
| C | 4 | 5 | 1232702 | 8186.02 | 543 | 537 | 150.5 |
| C | 9 | 38 | 382804 | 2539.63 | 543 | 537 | 150.5 |
| D | 15 | 94 | 7076236 | 59811.17 | 404 | 384 | 118.3 |
| D | 12 | 0 | 812174 | 6861.95 | 404 | 384 | 118.3 |
| D | 8 | 176 | 621884 | 5253.45 | 404 | 384 | 118.3 |
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 |  |