Observation information
- date-obs: 2025-05-29
- time-obs: 15:31:49.256700000
- date-end: 2025-05-29
- time-end: 17:27:37.242300000
- obs_id: C09_011T05_9000006474
- exposure: 2891.11280078
- 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_9000006474_52298cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52298cztM0_level2_quad_clean.evt
|
| Size (bytes) | 936,745,920 | 81,668,160 |
| Size | 893.4 MB
| 77.9 MB
|
| Events in quadrant A | 4,501,331 | 659,671 |
| Events in quadrant B | 6,549,191 | 639,139 |
| Events in quadrant C | 12,925,459 | 289,026 |
| Events in quadrant D | 10,161,613 | 400,054 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18263 | 0 |
| B | 0 | 24320 | 0 |
| C | 0 | 43166 | 0 |
| D | 0 | 35022 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6948 | 329 | 4.735176% |
| B | 6949 | 936 | 13.469564% |
| C | 6949 | 4342 | 62.483811% |
| D | 6949 | 2834 | 40.782846% |
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 | 6948 | 6948 | 261 | 261 | 3.76% | 3.76% |  |
| B | 6949 | 6949 | 613 | 613 | 8.82% | 8.82% |  |
| C | 6948 | 6948 | 3661 | 3661 | 52.69% | 52.69% |  |
| D | 6949 | 6949 | 2461 | 2461 | 35.42% | 35.42% |  |
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 | 249 | 585704 | 3189.64 | 724 | 707 | 183.4 |
| A | 7 | 206 | 518960 | 2825.73 | 724 | 707 | 183.4 |
| A | 5 | 240 | 96145 | 520.37 | 724 | 707 | 183.4 |
| B | 12 | 32 | 1884869 | 13051.26 | 685 | 663 | 144.4 |
| B | 4 | 171 | 577926 | 3998.5 | 685 | 663 | 144.4 |
| B | 10 | 254 | 457272 | 3162.77 | 685 | 663 | 144.4 |
| C | 0 | 161 | 3853641 | 30940.67 | 444 | 441 | 124.5 |
| C | 15 | 178 | 2952725 | 23706.44 | 444 | 441 | 124.5 |
| C | 15 | 224 | 2098128 | 16844.14 | 444 | 441 | 124.5 |
| D | 15 | 93 | 5081627 | 31196.53 | 560 | 533 | 162.9 |
| D | 6 | 42 | 1738443 | 10670.29 | 560 | 533 | 162.9 |
| D | 8 | 176 | 346586 | 2124.67 | 560 | 533 | 162.9 |
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 |  |