Observation information
- date-obs: 2025-05-17
- time-obs: 12:00:08.633100000
- date-end: 2025-05-17
- time-end: 13:59:29.616100000
- obs_id: C09_011T07_9000006470
- exposure: 23.4964221716
- 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_52118cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52118cztM0_level2_quad_clean.evt
|
| Size (bytes) | 871,459,200 | 68,345,280 |
| Size | 831.1 MB
| 65.2 MB
|
| Events in quadrant A | 3,776,479 | 579,760 |
| Events in quadrant B | 4,462,276 | 600,244 |
| Events in quadrant C | 7,484,821 | 463,619 |
| Events in quadrant D | 16,065,905 | 2,409 |
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 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15222 | 1 |
| B | 0 | 17414 | 1 |
| C | 0 | 26426 | 4 |
| D | 0 | 51796 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6057 | 218 | 3.599141% |
| B | 6057 | 420 | 6.934126% |
| C | 6056 | 1437 | 23.728534% |
| D | 6056 | 6040 | 99.735799% |
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 | 7162 | 6058 | 105 | 105 | 1.47% | 1.73% |  |
| B | 7162 | 6057 | 261 | 261 | 3.64% | 4.31% |  |
| C | 7161 | 6057 | 1076 | 1076 | 15.03% | 17.76% |  |
| D | 7160 | 6055 | 5745 | 5745 | 80.24% | 94.88% |  |
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 | 7 | 580553 | 3598.01 | 643 | 627 | 161.2 |
| A | 4 | 3 | 236274 | 1462.01 | 643 | 627 | 161.2 |
| A | 5 | 240 | 79539 | 489.59 | 643 | 627 | 161.2 |
| B | 8 | 128 | 426792 | 3227.45 | 623 | 601 | 132.1 |
| B | 5 | 172 | 353803 | 2674.72 | 623 | 601 | 132.1 |
| B | 10 | 254 | 263378 | 1989.95 | 623 | 601 | 132.1 |
| C | 15 | 224 | 3766428 | 23934.53 | 571 | 563 | 157.3 |
| C | 13 | 3 | 417676 | 2651.03 | 571 | 563 | 157.3 |
| C | 15 | 217 | 340464 | 2160.29 | 571 | 563 | 157.3 |
| D | 15 | 94 | 11187237 | 194159.45 | 197 | 188 | 57.6 |
| D | 6 | 42 | 3350005 | 58138.53 | 197 | 188 | 57.6 |
| D | 13 | 170 | 181648 | 3149.37 | 197 | 188 | 57.6 |
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 |  |