Observation information
- date-obs: 2025-05-19
- time-obs: 22:44:49.153600000
- date-end: 2025-05-20
- time-end: 00:58:28.135500000
- obs_id: C09_011T07_9000006470
- exposure: 2457.51567107
- 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_9000006470_52154cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52154cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,200,214,080 | 88,701,120 |
| Size | 1.1 GB
| 84.6 MB
|
| Events in quadrant A | 6,155,794 | 733,129 |
| Events in quadrant B | 10,870,209 | 560,582 |
| Events in quadrant C | 9,099,576 | 622,024 |
| Events in quadrant D | 17,684,163 | 211,677 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 160 | 0 |
| B | 0 | 160 | 0 |
| C | 0 | 160 | 0 |
| D | 0 | 160 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23966 | 0 |
| B | 0 | 37829 | 5 |
| C | 0 | 32689 | 0 |
| D | 0 | 58121 | 23 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8019 | 152 | 1.895498% |
| B | 8019 | 2953 | 36.825041% |
| C | 8019 | 1472 | 18.356404% |
| D | 8016 | 5861 | 73.116267% |
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 | 8019 | 8019 | 145 | 145 | 1.81% | 1.81% |  |
| B | 8018 | 8018 | 2216 | 2216 | 27.64% | 27.64% |  |
| C | 8019 | 8019 | 1291 | 1291 | 16.10% | 16.10% |  |
| D | 8019 | 8017 | 5795 | 5795 | 72.27% | 72.28% |  |
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 | 3 | 1363565 | 6470.85 | 832 | 809 | 210.6 |
| A | 14 | 254 | 328439 | 1555.7 | 832 | 809 | 210.6 |
| A | 3 | 95 | 189278 | 894.92 | 832 | 809 | 210.6 |
| B | 12 | 32 | 6387151 | 44155.09 | 689 | 668 | 144.6 |
| B | 10 | 254 | 890643 | 6153.14 | 689 | 668 | 144.6 |
| B | 4 | 171 | 112419 | 772.63 | 689 | 668 | 144.6 |
| C | 15 | 224 | 2682411 | 12586.38 | 771 | 765 | 213.1 |
| C | 4 | 5 | 896369 | 4203.54 | 771 | 765 | 213.1 |
| C | 15 | 192 | 682485 | 3199.67 | 771 | 765 | 213.1 |
| D | 6 | 42 | 10958215 | 74818.43 | 507 | 484 | 146.5 |
| D | 12 | 3 | 2565192 | 17511.6 | 507 | 484 | 146.5 |
| D | 12 | 17 | 697660 | 4760.26 | 507 | 484 | 146.5 |
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 |  |