Observation information
- date-obs: 2025-06-24
- time-obs: 03:57:34.954800000
- date-end: 2025-06-24
- time-end: 06:01:59.938100000
- obs_id: C09_011T07_9000006480
- exposure: 1896.4663254
- 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_011T07_9000006480_52677cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52677cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,095,888,960 | 82,137,600 |
| Size | 1.0 GB
| 78.3 MB
|
| Events in quadrant A | 4,072,477 | 675,517 |
| Events in quadrant B | 6,833,409 | 698,890 |
| Events in quadrant C | 11,547,529 | 439,894 |
| Events in quadrant D | 17,536,824 | 152,430 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17253 | 0 |
| B | 0 | 25511 | 0 |
| C | 0 | 39527 | 0 |
| D | 0 | 57110 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7465 | 83 | 1.111855% |
| B | 7465 | 516 | 6.912257% |
| C | 7465 | 2638 | 35.338245% |
| D | 7465 | 5833 | 78.137977% |
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 | 7465 | 7465 | 74 | 74 | 0.99% | 0.99% |  |
| B | 7465 | 7465 | 331 | 331 | 4.43% | 4.43% |  |
| C | 7465 | 7465 | 2690 | 2690 | 36.03% | 36.03% |  |
| D | 7465 | 7465 | 5840 | 5840 | 78.23% | 78.23% |  |
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 | 3 | 14 | 397576 | 2098.33 | 754 | 734 | 189.1 |
| A | 14 | 239 | 123611 | 649.72 | 754 | 734 | 189.1 |
| A | 12 | 80 | 88172 | 462.33 | 754 | 734 | 189.1 |
| B | 10 | 128 | 935709 | 5899.9 | 736 | 708 | 158.5 |
| B | 12 | 32 | 722103 | 4552.04 | 736 | 708 | 158.5 |
| B | 7 | 0 | 680057 | 4286.72 | 736 | 708 | 158.5 |
| C | 15 | 248 | 5963402 | 35516.87 | 608 | 602 | 167.9 |
| C | 15 | 157 | 1559988 | 9288.34 | 608 | 602 | 167.9 |
| C | 9 | 38 | 415619 | 2472.01 | 608 | 602 | 167.9 |
| D | 8 | 176 | 9971375 | 89210.85 | 379 | 360 | 111.8 |
| D | 2 | 62 | 3262600 | 29187.32 | 379 | 360 | 111.8 |
| D | 6 | 42 | 1853304 | 16578.32 | 379 | 360 | 111.8 |
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 |  |