Observation information
- date-obs: 2025-05-31
- time-obs: 14:25:40.882200000
- date-end: 2025-05-31
- time-end: 16:19:57.867500000
- obs_id: C09_011T05_9000006474
- exposure: 3830.67191458
- 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_011T05_9000006474_52327cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52327cztM0_level2_quad_clean.evt
|
| Size (bytes) | 990,118,080 | 80,484,480 |
| Size | 944.3 MB
| 76.8 MB
|
| Events in quadrant A | 3,809,675 | 649,467 |
| Events in quadrant B | 10,726,725 | 482,615 |
| Events in quadrant C | 12,208,216 | 355,604 |
| Events in quadrant D | 9,377,321 | 471,164 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16099 | 0 |
| B | 0 | 36710 | 0 |
| C | 0 | 40968 | 10 |
| D | 0 | 32636 | 4 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6857 | 128 | 1.866706% |
| B | 6857 | 2455 | 35.802829% |
| C | 6856 | 3417 | 49.839557% |
| D | 6857 | 1664 | 24.267172% |
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 | 6857 | 6857 | 87 | 87 | 1.27% | 1.27% |  |
| B | 6857 | 6857 | 2033 | 2033 | 29.65% | 29.65% |  |
| C | 6858 | 6858 | 3028 | 3028 | 44.15% | 44.15% |  |
| D | 6857 | 6857 | 1610 | 1610 | 23.48% | 23.48% |  |
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 | 5 | 243 | 313463 | 1775.85 | 710 | 694 | 176.1 |
| A | 11 | 3 | 133744 | 755.44 | 710 | 694 | 176.1 |
| A | 4 | 249 | 120129 | 678.13 | 710 | 694 | 176.1 |
| B | 7 | 0 | 4155952 | 30079.71 | 647 | 623 | 138.1 |
| B | 10 | 254 | 2991070 | 21647.33 | 647 | 623 | 138.1 |
| B | 0 | 216 | 389664 | 2816.2 | 647 | 623 | 138.1 |
| C | 12 | 254 | 4144042 | 27721.76 | 537 | 533 | 149.5 |
| C | 15 | 224 | 3059364 | 20464.82 | 537 | 533 | 149.5 |
| C | 15 | 178 | 1048810 | 7013.4 | 537 | 533 | 149.5 |
| D | 12 | 17 | 2252678 | 12373.45 | 637 | 607 | 182.0 |
| D | 12 | 2 | 1915435 | 10520.55 | 637 | 607 | 182.0 |
| D | 15 | 93 | 673724 | 3698.28 | 637 | 607 | 182.0 |
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 |  |