Observation information
- date-obs: 2025-06-19
- time-obs: 07:44:44.896100000
- date-end: 2025-06-19
- time-end: 10:54:08.873400000
- obs_id: C09_011T06_9000006478
- exposure: 7519.76741588
- 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_52607cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52607cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,131,724,800 | 145,097,280 |
| Size | 1.1 GB
| 138.4 MB
|
| Events in quadrant A | 7,153,878 | 1,012,779 |
| Events in quadrant B | 8,513,829 | 1,051,575 |
| Events in quadrant C | 8,569,511 | 930,971 |
| Events in quadrant D | 16,776,772 | 610,621 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29097 | 0 |
| B | 0 | 33234 | 0 |
| C | 0 | 33581 | 0 |
| D | 0 | 57844 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 228 | 0 |
| B | 0 | 228 | 0 |
| C | 0 | 228 | 0 |
| D | 0 | 228 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11364 | 478 | 4.206265% |
| B | 11364 | 800 | 7.039775% |
| C | 11365 | 859 | 7.558293% |
| D | 11365 | 4276 | 37.624285% |
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 | 11364 | 11364 | 328 | 328 | 2.89% | 2.89% |  |
| B | 11364 | 11364 | 289 | 289 | 2.54% | 2.54% |  |
| C | 11365 | 11365 | 694 | 694 | 6.11% | 6.11% |  |
| D | 11365 | 11364 | 3511 | 3511 | 30.89% | 30.90% |  |
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 | 249 | 1017912 | 3454.63 | 1172 | 1143 | 294.3 |
| A | 12 | 80 | 452036 | 1531.98 | 1172 | 1143 | 294.3 |
| A | 3 | 14 | 201497 | 680.73 | 1172 | 1143 | 294.3 |
| B | 10 | 254 | 1722131 | 7101.91 | 1147 | 1109 | 242.3 |
| B | 4 | 81 | 650410 | 2679.38 | 1147 | 1109 | 242.3 |
| B | 7 | 0 | 641188 | 2641.33 | 1147 | 1109 | 242.3 |
| C | 15 | 248 | 1697224 | 5532.12 | 1113 | 1098 | 306.6 |
| C | 2 | 12 | 537736 | 1750.31 | 1113 | 1098 | 306.6 |
| C | 12 | 252 | 459921 | 1496.51 | 1113 | 1098 | 306.6 |
| D | 4 | 186 | 4163789 | 16164.47 | 901 | 861 | 257.5 |
| D | 2 | 62 | 3680108 | 14286.35 | 901 | 861 | 257.5 |
| D | 8 | 176 | 2176782 | 8449.0 | 901 | 861 | 257.5 |
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 |  |