Observation information
- date-obs: 2025-06-24
- time-obs: 02:22:16.967200000
- date-end: 2025-06-24
- time-end: 04:16:55.951900000
- obs_id: C09_011T07_9000006480
- exposure: 2976.03361082
- 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_52676cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52676cztM0_level2_quad_clean.evt
|
| Size (bytes) | 873,930,240 | 81,717,120 |
| Size | 833.4 MB
| 77.9 MB
|
| Events in quadrant A | 3,605,097 | 632,112 |
| Events in quadrant B | 4,734,551 | 649,503 |
| Events in quadrant C | 10,287,967 | 473,033 |
| Events in quadrant D | 13,190,736 | 239,893 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15467 | 0 |
| B | 0 | 18977 | 0 |
| C | 0 | 35380 | 0 |
| D | 0 | 43905 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6879 | 37 | 0.537869% |
| B | 6879 | 328 | 4.768135% |
| C | 6880 | 1732 | 25.174419% |
| D | 6879 | 4040 | 58.729466% |
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 | 6879 | 6879 | 27 | 27 | 0.39% | 0.39% |  |
| B | 6879 | 6879 | 195 | 195 | 2.83% | 2.83% |  |
| C | 6880 | 6880 | 1943 | 1943 | 28.24% | 28.24% |  |
| D | 6879 | 6879 | 3941 | 3941 | 57.29% | 57.29% |  |
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 | 3 | 14 | 418246 | 2395.74 | 694 | 674 | 174.3 |
| A | 5 | 240 | 76669 | 436.01 | 694 | 674 | 174.3 |
| A | 14 | 239 | 68169 | 387.24 | 694 | 674 | 174.3 |
| B | 10 | 128 | 589025 | 4094.63 | 678 | 653 | 143.7 |
| B | 2 | 249 | 488370 | 3394.14 | 678 | 653 | 143.7 |
| B | 12 | 32 | 334376 | 2322.46 | 678 | 653 | 143.7 |
| C | 15 | 248 | 6803255 | 39817.98 | 617 | 613 | 170.8 |
| C | 13 | 3 | 347882 | 2032.67 | 617 | 613 | 170.8 |
| C | 12 | 252 | 263112 | 1536.49 | 617 | 613 | 170.8 |
| D | 8 | 176 | 8856039 | 78357.26 | 384 | 364 | 113.0 |
| D | 2 | 62 | 1543905 | 13657.64 | 384 | 364 | 113.0 |
| D | 6 | 42 | 653346 | 5777.75 | 384 | 364 | 113.0 |
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 |  |