Observation information
- date-obs: 2025-06-16
- time-obs: 06:53:14.458200000
- date-end: 2025-06-16
- time-end: 08:52:06.442200000
- obs_id: C09_011T06_9000006478
- exposure: 379.335857689
- 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_52560cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52560cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,020,070,080 | 77,863,680 |
| Size | 972.8 MB
| 74.3 MB
|
| Events in quadrant A | 3,143,462 | 668,834 |
| Events in quadrant B | 9,339,238 | 611,231 |
| Events in quadrant C | 7,421,339 | 549,342 |
| Events in quadrant D | 17,303,928 | 30,761 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14691 | 0 |
| B | 0 | 32696 | 0 |
| C | 0 | 27026 | 0 |
| D | 0 | 56192 | 6 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7132 | 19 | 0.266405% |
| B | 7132 | 1358 | 19.040942% |
| C | 7133 | 1123 | 15.743726% |
| D | 7132 | 6830 | 95.765564% |
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 | 7132 | 7132 | 11 | 11 | 0.15% | 0.15% |  |
| B | 7132 | 7132 | 768 | 768 | 10.77% | 10.77% |  |
| C | 7133 | 7133 | 962 | 962 | 13.49% | 13.49% |  |
| D | 7131 | 7131 | 6333 | 6333 | 88.81% | 88.81% |  |
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 | 3 | 44 | 37938 | 199.3 | 737 | 716 | 186.8 |
| A | 4 | 205 | 34655 | 181.72 | 737 | 716 | 186.8 |
| A | 3 | 14 | 31767 | 166.26 | 737 | 716 | 186.8 |
| B | 10 | 254 | 4441596 | 30195.67 | 692 | 668 | 147.1 |
| B | 10 | 44 | 910250 | 6184.62 | 692 | 668 | 147.1 |
| B | 4 | 170 | 401672 | 2726.59 | 692 | 668 | 147.1 |
| C | 15 | 248 | 1046874 | 5732.46 | 660 | 656 | 182.5 |
| C | 2 | 12 | 993606 | 5440.6 | 660 | 656 | 182.5 |
| C | 13 | 3 | 989715 | 5419.28 | 660 | 656 | 182.5 |
| D | 6 | 42 | 13761412 | 207921.14 | 224 | 213 | 66.2 |
| D | 2 | 62 | 1504128 | 22722.99 | 224 | 213 | 66.2 |
| D | 15 | 125 | 381356 | 5758.77 | 224 | 213 | 66.2 |
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 |  |