Observation information
- date-obs: 2025-07-10
- time-obs: 12:02:45.765400000
- date-end: 2025-07-10
- time-end: 14:10:46.747900000
- obs_id: C09_011T06_9000006484
- exposure: 46.1524943113
- 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_9000006484_52920cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006484_52920cztM0_level2_quad_clean.evt
|
| Size (bytes) | 974,433,600 | 71,608,320 |
| Size | 929.3 MB
| 68.3 MB
|
| Events in quadrant A | 17,022,472 | 4,861 |
| Events in quadrant B | 3,792,466 | 680,431 |
| Events in quadrant C | 4,452,334 | 594,895 |
| Events in quadrant D | 10,286,890 | 422,642 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 55278 | 3 |
| B | 0 | 15724 | 1 |
| C | 0 | 18000 | 1 |
| D | 0 | 35218 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6670 | 6639 | 99.535232% |
| B | 6671 | 193 | 2.893119% |
| C | 6671 | 295 | 4.422126% |
| D | 6671 | 2177 | 32.633788% |
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 | 7679 | 6668 | 6044 | 6044 | 78.71% | 90.64% |  |
| B | 7681 | 6672 | 38 | 38 | 0.49% | 0.57% |  |
| C | 7681 | 6672 | 161 | 161 | 2.10% | 2.41% |  |
| D | 7681 | 6672 | 2107 | 2107 | 27.43% | 31.58% |  |
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 | 9 | 191 | 15856251 | 262214.17 | 231 | 225 | 60.5 |
| A | 0 | 8 | 79336 | 1308.27 | 231 | 225 | 60.5 |
| A | 15 | 174 | 35128 | 577.2 | 231 | 225 | 60.5 |
| B | 10 | 254 | 305454 | 2074.1 | 696 | 672 | 146.9 |
| B | 4 | 81 | 213214 | 1446.39 | 696 | 672 | 146.9 |
| B | 12 | 32 | 144662 | 979.88 | 696 | 672 | 146.9 |
| C | 13 | 3 | 278072 | 1505.75 | 679 | 673 | 184.2 |
| C | 7 | 80 | 251910 | 1363.74 | 679 | 673 | 184.2 |
| C | 15 | 224 | 216350 | 1170.72 | 679 | 673 | 184.2 |
| D | 15 | 78 | 3464061 | 19724.62 | 615 | 586 | 175.6 |
| D | 8 | 48 | 2230746 | 12700.85 | 615 | 586 | 175.6 |
| D | 15 | 125 | 762017 | 4336.38 | 615 | 586 | 175.6 |
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 |  |