Observation information
- date-obs: 2025-06-18
- time-obs: 22:57:41.962900000
- date-end: 2025-06-19
- time-end: 01:02:14.946500000
- obs_id: C09_011T06_9000006478
- exposure: 2212.44382238
- 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_011T06_9000006478_52600cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52600cztM0_level2_quad_clean.evt
|
| Size (bytes) | 770,754,240 | 79,171,200 |
| Size | 735.0 MB
| 75.5 MB
|
| Events in quadrant A | 3,256,935 | 592,750 |
| Events in quadrant B | 4,063,072 | 640,849 |
| Events in quadrant C | 6,437,275 | 530,291 |
| Events in quadrant D | 14,281,517 | 190,089 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14503 | 1 |
| B | 0 | 16611 | 1 |
| C | 0 | 23648 | 1 |
| D | 0 | 46824 | 8 |
| 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 | 6348 | 155 | 2.441714% |
| B | 6349 | 144 | 2.268074% |
| C | 6349 | 717 | 11.293117% |
| D | 6348 | 4508 | 71.014493% |
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 | 7473 | 6349 | 118 | 118 | 1.58% | 1.86% |  |
| B | 7474 | 6350 | 62 | 62 | 0.83% | 0.98% |  |
| C | 7474 | 6350 | 660 | 660 | 8.83% | 10.39% |  |
| D | 7473 | 6349 | 4621 | 4621 | 61.84% | 72.78% |  |
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 | 4 | 249 | 373367 | 2332.38 | 639 | 624 | 159.8 |
| A | 3 | 28 | 63853 | 395.65 | 639 | 624 | 159.8 |
| A | 5 | 243 | 52147 | 322.4 | 639 | 624 | 159.8 |
| B | 10 | 254 | 541674 | 3963.36 | 645 | 623 | 136.5 |
| B | 10 | 128 | 344686 | 2520.36 | 645 | 623 | 136.5 |
| B | 4 | 171 | 77827 | 565.54 | 645 | 623 | 136.5 |
| C | 15 | 248 | 2793642 | 16290.76 | 612 | 607 | 171.4 |
| C | 1 | 44 | 432310 | 2517.97 | 612 | 607 | 171.4 |
| C | 15 | 192 | 252052 | 1466.59 | 612 | 607 | 171.4 |
| D | 12 | 16 | 7440316 | 62111.08 | 399 | 379 | 119.8 |
| D | 8 | 176 | 2334911 | 19489.45 | 399 | 379 | 119.8 |
| D | 15 | 125 | 703598 | 5870.71 | 399 | 379 | 119.8 |
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 |  |