Observation information
- date-obs: 2025-05-04
- time-obs: 09:52:36.245300000
- date-end: 2025-05-04
- time-end: 15:21:04.200000000
- obs_id: C09_011T05_9000006466
- exposure: 7151.76475692
- 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_011T05_9000006466_51925cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51925cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,862,325,440 | 191,882,880 |
| Size | 2.7 GB
| 183.0 MB
|
| Events in quadrant A | 23,291,857 | 1,289,733 |
| Events in quadrant B | 15,688,466 | 1,607,292 |
| Events in quadrant C | 27,636,989 | 1,046,903 |
| Events in quadrant D | 37,922,971 | 594,304 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 374 | 0 |
| B | 0 | 374 | 0 |
| C | 0 | 374 | 0 |
| D | 0 | 374 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 82087 | 3 |
| B | 0 | 59557 | 3 |
| C | 0 | 94857 | 3 |
| D | 0 | 125355 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18414 | 4450 | 24.166395% |
| B | 18414 | 2534 | 13.761269% |
| C | 18414 | 7268 | 39.469969% |
| D | 18414 | 12175 | 66.118171% |
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 | 19709 | 18416 | 3799 | 3799 | 19.28% | 20.63% |  |
| B | 19708 | 18416 | 1796 | 1796 | 9.11% | 9.75% |  |
| C | 19708 | 18414 | 6252 | 6252 | 31.72% | 33.95% |  |
| D | 19709 | 18414 | 11371 | 11371 | 57.69% | 61.75% |  |
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 | 7 | 64 | 3888947 | 8734.38 | 1782 | 1740 | 445.0 |
| A | 8 | 248 | 2943040 | 6608.97 | 1782 | 1740 | 445.0 |
| A | 12 | 3 | 2873379 | 6452.44 | 1782 | 1740 | 445.0 |
| B | 4 | 206 | 2693937 | 6944.24 | 1834 | 1768 | 387.7 |
| B | 5 | 185 | 1435141 | 3697.27 | 1834 | 1768 | 387.7 |
| B | 12 | 32 | 1147951 | 2956.49 | 1834 | 1768 | 387.7 |
| C | 15 | 224 | 16318729 | 38162.83 | 1549 | 1537 | 427.6 |
| C | 0 | 193 | 999774 | 2334.69 | 1549 | 1537 | 427.6 |
| C | 15 | 158 | 658802 | 1537.22 | 1549 | 1537 | 427.6 |
| D | 12 | 17 | 21477240 | 64800.7 | 1171 | 1118 | 331.4 |
| D | 6 | 42 | 4666516 | 14077.08 | 1171 | 1118 | 331.4 |
| D | 2 | 172 | 1984176 | 5983.55 | 1171 | 1118 | 331.4 |
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 |  |