Observation information
- date-obs: 2025-06-22
- time-obs: 13:48:26.267800000
- date-end: 2025-06-22
- time-end: 15:50:55.250500000
- obs_id: C09_011T07_9000006480
- exposure: 584.356336117
- 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_9000006480_52654cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52654cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,151,334,720 | 52,217,280 |
| Size | 1.1 GB
| 49.8 MB
|
| Events in quadrant A | 3,880,932 | 599,928 |
| Events in quadrant B | 13,602,360 | 133,287 |
| Events in quadrant C | 14,975,307 | 52,560 |
| Events in quadrant D | 9,670,106 | 351,394 |
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 SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15960 | 1 |
| B | 0 | 44747 | 5 |
| C | 0 | 48839 | 1 |
| D | 0 | 33131 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6349 | 157 | 2.472830% |
| B | 6349 | 5314 | 83.698220% |
| C | 6349 | 5820 | 91.667979% |
| D | 6349 | 2590 | 40.793826% |
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 | 7349 | 6349 | 100 | 100 | 1.36% | 1.58% |  |
| B | 7348 | 6348 | 4200 | 4200 | 57.16% | 66.16% |  |
| C | 7348 | 6348 | 5580 | 5580 | 75.94% | 87.90% |  |
| D | 7349 | 6349 | 2129 | 2129 | 28.97% | 33.53% |  |
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 | 3 | 14 | 353826 | 2150.9 | 658 | 642 | 164.2 |
| A | 11 | 7 | 221655 | 1345.98 | 658 | 642 | 164.2 |
| A | 4 | 249 | 116282 | 704.25 | 658 | 642 | 164.2 |
| B | 10 | 128 | 8057215 | 100624.32 | 375 | 364 | 80.1 |
| B | 12 | 32 | 3249655 | 40581.33 | 375 | 364 | 80.1 |
| B | 5 | 185 | 169991 | 2118.52 | 375 | 364 | 80.1 |
| C | 15 | 233 | 9794652 | 141349.15 | 246 | 245 | 69.3 |
| C | 15 | 158 | 3542470 | 51120.04 | 246 | 245 | 69.3 |
| C | 3 | 233 | 146996 | 2117.85 | 246 | 245 | 69.3 |
| D | 12 | 3 | 2995536 | 20434.43 | 508 | 486 | 146.6 |
| D | 8 | 176 | 2059578 | 14048.63 | 508 | 486 | 146.6 |
| D | 1 | 7 | 922390 | 6289.9 | 508 | 486 | 146.6 |
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 |  |