Observation information
- date-obs: 2025-07-09
- time-obs: 18:45:12.905900000
- date-end: 2025-07-09
- time-end: 20:48:43.891100000
- obs_id: C09_011T06_9000006484
- exposure: 51.698137939
- 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_52909cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006484_52909cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,110,401,280 | 74,877,120 |
| Size | 1.0 GB
| 71.4 MB
|
| Events in quadrant A | 18,563,264 | 4,761 |
| Events in quadrant B | 3,547,562 | 745,956 |
| Events in quadrant C | 9,252,630 | 502,958 |
| Events in quadrant D | 9,166,780 | 497,121 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 60018 | 0 |
| B | 0 | 15910 | 0 |
| C | 0 | 32679 | 0 |
| D | 0 | 32413 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7411 | 7379 | 99.568209% |
| B | 7412 | 50 | 0.674582% |
| C | 7412 | 1999 | 26.969779% |
| D | 7412 | 1901 | 25.647598% |
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 | 7411 | 7411 | 7003 | 7003 | 94.49% | 94.49% |  |
| B | 7412 | 7412 | 34 | 34 | 0.46% | 0.46% |  |
| C | 7412 | 7412 | 1611 | 1611 | 21.74% | 21.74% |  |
| D | 7412 | 7412 | 1518 | 1518 | 20.48% | 20.48% |  |
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 | 16896572 | 296935.45 | 217 | 211 | 56.9 |
| A | 12 | 17 | 459769 | 8076.24 | 217 | 211 | 56.9 |
| A | 4 | 238 | 68009 | 1191.48 | 217 | 211 | 56.9 |
| B | 4 | 81 | 91700 | 549.98 | 773 | 746 | 165.4 |
| B | 10 | 247 | 71553 | 428.15 | 773 | 746 | 165.4 |
| B | 5 | 185 | 61656 | 368.31 | 773 | 746 | 165.4 |
| C | 7 | 80 | 2695107 | 14911.91 | 658 | 652 | 180.7 |
| C | 15 | 224 | 1700389 | 9406.85 | 658 | 652 | 180.7 |
| C | 15 | 158 | 705190 | 3899.12 | 658 | 652 | 180.7 |
| D | 8 | 176 | 3016725 | 15526.64 | 675 | 645 | 194.3 |
| D | 10 | 172 | 1307056 | 6725.34 | 675 | 645 | 194.3 |
| D | 15 | 125 | 729331 | 3751.24 | 675 | 645 | 194.3 |
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 |  |