Observation information
- date-obs: 2025-06-15
- time-obs: 08:10:45.638600000
- date-end: 2025-06-15
- time-end: 10:18:53.622700000
- obs_id: C09_011T06_9000006478
- exposure: 3358.53302467
- 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_52546cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52546cztM0_level2_quad_clean.evt
|
| Size (bytes) | 790,038,720 | 96,096,960 |
| Size | 753.4 MB
| 91.6 MB
|
| Events in quadrant A | 3,886,136 | 695,595 |
| Events in quadrant B | 5,187,219 | 735,726 |
| Events in quadrant C | 4,076,036 | 670,089 |
| Events in quadrant D | 15,498,602 | 272,934 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17282 | 0 |
| B | 0 | 20700 | 0 |
| C | 0 | 17965 | 0 |
| D | 0 | 51338 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7689 | 155 | 2.015867% |
| B | 7689 | 307 | 3.992717% |
| C | 7689 | 131 | 1.703733% |
| D | 7689 | 4658 | 60.580049% |
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 | 7689 | 7689 | 119 | 119 | 1.55% | 1.55% |  |
| B | 7689 | 7689 | 219 | 219 | 2.85% | 2.85% |  |
| C | 7689 | 7689 | 108 | 108 | 1.40% | 1.40% |  |
| D | 7689 | 7689 | 4322 | 4322 | 56.21% | 56.21% |  |
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 | 61 | 457335 | 2341.14 | 785 | 764 | 195.0 |
| A | 5 | 243 | 62401 | 316.05 | 785 | 764 | 195.0 |
| A | 8 | 249 | 50404 | 254.54 | 785 | 764 | 195.0 |
| B | 10 | 44 | 950619 | 5734.04 | 773 | 748 | 165.7 |
| B | 10 | 254 | 446952 | 2693.58 | 773 | 748 | 165.7 |
| B | 7 | 0 | 182772 | 1098.82 | 773 | 748 | 165.7 |
| C | 13 | 3 | 543218 | 2598.28 | 757 | 748 | 208.8 |
| C | 4 | 5 | 262024 | 1251.44 | 757 | 748 | 208.8 |
| C | 15 | 248 | 162480 | 774.65 | 757 | 748 | 208.8 |
| D | 6 | 42 | 10025680 | 66267.99 | 519 | 494 | 151.3 |
| D | 15 | 125 | 957157 | 6323.69 | 519 | 494 | 151.3 |
| D | 8 | 176 | 935435 | 6180.1 | 519 | 494 | 151.3 |
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 |  |