Observation information
- date-obs: 2025-07-23
- time-obs: 19:16:36.762800000
- date-end: 2025-07-23
- time-end: 21:22:22.059200000
- obs_id: C09_011T07_9000006488
- exposure: 4560.30390108
- 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_9000006488_53117cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006488_53117cztM0_level2_quad_clean.evt
|
| Size (bytes) | 627,215,040 | 97,113,600 |
| Size | 598.2 MB
| 92.6 MB
|
| Events in quadrant A | 3,475,347 | 701,229 |
| Events in quadrant B | 4,233,999 | 707,871 |
| Events in quadrant C | 9,651,782 | 457,501 |
| Events in quadrant D | 5,346,209 | 614,417 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15180 | 2 |
| B | 0 | 17194 | 2 |
| C | 0 | 33287 | 2 |
| D | 0 | 20555 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6581 | 68 | 1.033278% |
| B | 6582 | 125 | 1.899119% |
| C | 6582 | 2280 | 34.639927% |
| D | 6582 | 394 | 5.986022% |
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 | 7546 | 6582 | 48 | 48 | 0.64% | 0.73% |  |
| B | 7547 | 6583 | 109 | 109 | 1.44% | 1.66% |  |
| C | 7547 | 6583 | 2156 | 2156 | 28.57% | 32.75% |  |
| D | 7547 | 6582 | 408 | 408 | 5.41% | 6.20% |  |
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 | 144574 | 788.95 | 717 | 699 | 182.4 |
| A | 0 | 8 | 126141 | 687.88 | 717 | 699 | 182.4 |
| A | 12 | 115 | 81602 | 443.64 | 717 | 699 | 182.4 |
| B | 10 | 254 | 893530 | 5988.49 | 696 | 673 | 149.1 |
| B | 5 | 185 | 118690 | 791.55 | 696 | 673 | 149.1 |
| B | 4 | 171 | 63824 | 423.56 | 696 | 673 | 149.1 |
| C | 0 | 240 | 3120224 | 18320.18 | 600 | 595 | 170.3 |
| C | 9 | 38 | 1882184 | 11049.73 | 600 | 595 | 170.3 |
| C | 15 | 224 | 1345762 | 7899.56 | 600 | 595 | 170.3 |
| D | 10 | 172 | 581036 | 2880.04 | 692 | 660 | 201.5 |
| D | 2 | 62 | 487046 | 2413.63 | 692 | 660 | 201.5 |
| D | 6 | 42 | 478964 | 2373.52 | 692 | 660 | 201.5 |
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 |  |