Observation information
- date-obs: 2025-06-24
- time-obs: 14:31:46.867700000
- date-end: 2025-06-24
- time-end: 15:13:04.861700000
- obs_id: C09_011T07_9000006480
- exposure: 1019.41762024
- 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_52684cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52684cztM0_level2_quad_clean.evt
|
| Size (bytes) | 328,504,320 | 30,666,240 |
| Size | 313.3 MB
| 29.2 MB
|
| Events in quadrant A | 1,326,629 | 237,899 |
| Events in quadrant B | 2,712,755 | 230,167 |
| Events in quadrant C | 5,433,547 | 91,747 |
| Events in quadrant D | 2,493,424 | 190,579 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 50 | 0 |
| B | 0 | 50 | 0 |
| C | 0 | 50 | 0 |
| D | 0 | 50 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5594 | 0 |
| B | 0 | 9807 | 0 |
| C | 0 | 17828 | 0 |
| D | 0 | 9077 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2478 | 25 | 1.008878% |
| B | 2479 | 267 | 10.770472% |
| C | 2479 | 1604 | 64.703509% |
| D | 2479 | 295 | 11.899960% |
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 | 2478 | 2478 | 23 | 23 | 0.93% | 0.93% |  |
| B | 2479 | 2479 | 186 | 186 | 7.50% | 7.50% |  |
| C | 2479 | 2479 | 1624 | 1624 | 65.51% | 65.51% |  |
| D | 2479 | 2479 | 300 | 300 | 12.10% | 12.10% |  |
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 | 156130 | 2462.13 | 241 | 235 | 63.3 |
| A | 5 | 241 | 92222 | 1452.8 | 241 | 235 | 63.3 |
| A | 7 | 206 | 26017 | 407.19 | 241 | 235 | 63.3 |
| B | 10 | 128 | 830820 | 16448.94 | 230 | 222 | 50.5 |
| B | 12 | 32 | 372273 | 7368.0 | 230 | 222 | 50.5 |
| B | 4 | 171 | 136526 | 2699.33 | 230 | 222 | 50.5 |
| C | 15 | 248 | 2937776 | 60435.21 | 169 | 166 | 48.6 |
| C | 14 | 96 | 1261726 | 25953.97 | 169 | 166 | 48.6 |
| C | 12 | 252 | 218621 | 4494.26 | 169 | 166 | 48.6 |
| D | 1 | 7 | 550784 | 8408.8 | 225 | 215 | 65.5 |
| D | 8 | 176 | 493114 | 7528.01 | 225 | 215 | 65.5 |
| D | 12 | 33 | 162160 | 2473.37 | 225 | 215 | 65.5 |
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 |  |