Observation information
- date-obs: 2025-05-17
- time-obs: 10:12:20.648400000
- date-end: 2025-05-17
- time-end: 12:11:57.631100000
- obs_id: C09_011T07_9000006470
- exposure: 40.4230753183
- 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_52117cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52117cztM0_level2_quad_clean.evt
|
| Size (bytes) | 932,866,560 | 63,763,200 |
| Size | 889.7 MB
| 60.8 MB
|
| Events in quadrant A | 3,257,892 | 587,609 |
| Events in quadrant B | 5,066,164 | 596,309 |
| Events in quadrant C | 9,813,883 | 312,843 |
| Events in quadrant D | 15,916,454 | 3,567 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| 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 | 13709 | 3 |
| B | 0 | 19259 | 1 |
| C | 0 | 33407 | 1 |
| D | 0 | 51569 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6161 | 94 | 1.525726% |
| B | 6162 | 450 | 7.302824% |
| C | 6162 | 3120 | 50.632911% |
| D | 6162 | 6133 | 99.529374% |
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 | 7176 | 6162 | 37 | 37 | 0.52% | 0.60% |  |
| B | 7177 | 6163 | 245 | 245 | 3.41% | 3.98% |  |
| C | 7177 | 6162 | 2203 | 2203 | 30.70% | 35.75% |  |
| D | 7177 | 6163 | 5774 | 5774 | 80.45% | 93.69% |  |
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 | 159068 | 961.13 | 655 | 639 | 164.8 |
| A | 5 | 240 | 119230 | 719.45 | 655 | 639 | 164.8 |
| A | 3 | 130 | 93438 | 562.98 | 655 | 639 | 164.8 |
| B | 8 | 128 | 1037064 | 7839.29 | 632 | 611 | 132.2 |
| B | 4 | 171 | 271739 | 2050.7 | 632 | 611 | 132.2 |
| B | 10 | 254 | 203493 | 1534.51 | 632 | 611 | 132.2 |
| C | 15 | 217 | 3969366 | 31670.39 | 453 | 451 | 125.3 |
| C | 15 | 224 | 2940344 | 23459.2 | 453 | 451 | 125.3 |
| C | 13 | 3 | 294174 | 2343.79 | 453 | 451 | 125.3 |
| D | 6 | 42 | 7509075 | 134369.94 | 188 | 179 | 55.9 |
| D | 15 | 94 | 7066010 | 126441.39 | 188 | 179 | 55.9 |
| D | 5 | 206 | 168023 | 3003.53 | 188 | 179 | 55.9 |
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 |  |