Observation information
- date-obs: 2025-06-22
- time-obs: 05:13:22.337200000
- date-end: 2025-06-22
- time-end: 07:10:03.321200000
- obs_id: C09_011T07_9000006480
- exposure: 5785.61866963
- 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_52648cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52648cztM0_level2_quad_clean.evt
|
| Size (bytes) | 653,460,480 | 93,248,640 |
| Size | 623.2 MB
| 88.9 MB
|
| Events in quadrant A | 3,647,143 | 644,187 |
| Events in quadrant B | 4,726,113 | 654,282 |
| Events in quadrant C | 6,244,866 | 558,615 |
| Events in quadrant D | 9,028,534 | 478,376 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15582 | 0 |
| B | 0 | 19138 | 0 |
| C | 0 | 23610 | 0 |
| D | 0 | 31827 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7001 | 39 | 0.557063% |
| B | 7001 | 453 | 6.470504% |
| C | 7001 | 740 | 10.569919% |
| D | 7001 | 1529 | 21.839737% |
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 | 7001 | 7001 | 11 | 11 | 0.16% | 0.16% |  |
| B | 7001 | 7001 | 340 | 340 | 4.86% | 4.86% |  |
| C | 7001 | 7001 | 813 | 813 | 11.61% | 11.61% |  |
| D | 7001 | 7001 | 1479 | 1479 | 21.13% | 21.13% |  |
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 | 14 | 239 | 304669 | 1713.35 | 715 | 697 | 177.4 |
| A | 3 | 14 | 163632 | 918.39 | 715 | 697 | 177.4 |
| A | 8 | 246 | 131657 | 738.16 | 715 | 697 | 177.4 |
| B | 12 | 32 | 807656 | 5488.65 | 693 | 668 | 147.0 |
| B | 10 | 247 | 390187 | 2649.28 | 693 | 668 | 147.0 |
| B | 8 | 234 | 234878 | 1592.95 | 693 | 668 | 147.0 |
| C | 1 | 3 | 1587616 | 8579.73 | 667 | 659 | 185.0 |
| C | 15 | 248 | 805269 | 4350.05 | 667 | 659 | 185.0 |
| C | 2 | 239 | 573490 | 3096.96 | 667 | 659 | 185.0 |
| D | 15 | 125 | 3720901 | 20567.53 | 631 | 602 | 180.9 |
| D | 12 | 2 | 1067735 | 5899.6 | 631 | 602 | 180.9 |
| D | 2 | 153 | 372123 | 2053.94 | 631 | 602 | 180.9 |
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 |  |