Observation information
- date-obs: 2025-07-06
- time-obs: 10:55:19.539600000
- date-end: 2025-07-06
- time-end: 13:01:51.523700000
- obs_id: C09_011T08_9000006482
- exposure: 4309.70453233
- 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_011T08_9000006482_52860cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006482_52860cztM0_level2_quad_clean.evt
|
| Size (bytes) | 851,716,800 | 80,916,480 |
| Size | 812.3 MB
| 77.2 MB
|
| Events in quadrant A | 9,903,519 | 451,818 |
| Events in quadrant B | 10,092,570 | 469,125 |
| Events in quadrant C | 4,606,672 | 559,440 |
| Events in quadrant D | 6,428,746 | 521,261 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 33802 | 1 |
| B | 0 | 34465 | 1 |
| C | 0 | 18248 | 1 |
| D | 0 | 23533 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6427 | 2345 | 36.486697% |
| B | 6428 | 2447 | 38.067828% |
| C | 6428 | 575 | 8.945240% |
| D | 6427 | 834 | 12.976505% |
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 | 7592 | 6428 | 1947 | 1947 | 25.65% | 30.29% |  |
| B | 7593 | 6429 | 1917 | 1917 | 25.25% | 29.82% |  |
| C | 7593 | 6429 | 403 | 403 | 5.31% | 6.27% |  |
| D | 7592 | 6428 | 684 | 684 | 9.01% | 10.64% |  |
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 | 9 | 191 | 4218917 | 27762.63 | 608 | 594 | 151.9 |
| A | 3 | 62 | 2311349 | 15208.09 | 608 | 594 | 151.9 |
| A | 15 | 174 | 367287 | 2413.37 | 608 | 594 | 151.9 |
| B | 8 | 3 | 7003174 | 55563.46 | 604 | 585 | 126.0 |
| B | 0 | 213 | 213533 | 1689.68 | 604 | 585 | 126.0 |
| B | 4 | 81 | 89874 | 708.48 | 604 | 585 | 126.0 |
| C | 15 | 224 | 1164973 | 6538.73 | 642 | 635 | 178.1 |
| C | 7 | 80 | 297674 | 1668.12 | 642 | 635 | 178.1 |
| C | 13 | 3 | 208024 | 1164.66 | 642 | 635 | 178.1 |
| D | 8 | 176 | 1291253 | 7046.25 | 642 | 615 | 183.2 |
| D | 2 | 37 | 1177142 | 6423.26 | 642 | 615 | 183.2 |
| D | 12 | 2 | 461343 | 2515.35 | 642 | 615 | 183.2 |
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 |  |