Observation information
- date-obs: 2025-06-18
- time-obs: 02:11:38.121200000
- date-end: 2025-06-18
- time-end: 04:15:49.105300000
- obs_id: C09_011T06_9000006478
- exposure: 5812.00053334
- 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_9000006478_52587cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52587cztM0_level2_quad_clean.evt
|
| Size (bytes) | 560,856,960 | 91,751,040 |
| Size | 534.9 MB
| 87.5 MB
|
| Events in quadrant A | 3,149,036 | 622,409 |
| Events in quadrant B | 5,680,669 | 617,375 |
| Events in quadrant C | 4,284,356 | 575,638 |
| Events in quadrant D | 7,126,643 | 494,585 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14654 | 1 |
| B | 0 | 21711 | 1 |
| C | 0 | 17765 | 1 |
| D | 0 | 25943 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6706 | 104 | 1.550850% |
| B | 6707 | 634 | 9.452810% |
| C | 6707 | 329 | 4.905323% |
| D | 6707 | 1025 | 15.282541% |
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 | 7451 | 6707 | 60 | 60 | 0.81% | 0.89% |  |
| B | 7452 | 6708 | 529 | 529 | 7.10% | 7.89% |  |
| C | 7452 | 6708 | 290 | 290 | 3.89% | 4.32% |  |
| D | 7452 | 6708 | 1006 | 1006 | 13.50% | 15.00% |  |
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 | 148457 | 866.53 | 676 | 658 | 170.6 |
| A | 7 | 190 | 82000 | 476.9 | 676 | 658 | 170.6 |
| A | 12 | 80 | 75210 | 437.09 | 676 | 658 | 170.6 |
| B | 10 | 254 | 1517291 | 10955.23 | 651 | 628 | 138.4 |
| B | 10 | 44 | 706598 | 5099.39 | 651 | 628 | 138.4 |
| B | 4 | 171 | 170571 | 1227.54 | 651 | 628 | 138.4 |
| C | 15 | 248 | 1167757 | 6443.81 | 646 | 639 | 181.1 |
| C | 15 | 178 | 143310 | 787.71 | 646 | 639 | 181.1 |
| C | 12 | 254 | 137346 | 754.78 | 646 | 639 | 181.1 |
| D | 15 | 125 | 2247152 | 12826.33 | 608 | 581 | 175.2 |
| D | 8 | 176 | 556942 | 3176.43 | 608 | 581 | 175.2 |
| D | 12 | 6 | 406864 | 2319.59 | 608 | 581 | 175.2 |
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 |  |