Observation information
- date-obs: 2025-05-30
- time-obs: 08:58:55.114600000
- date-end: 2025-05-30
- time-end: 12:33:02.088200000
- obs_id: C09_011T05_9000006474
- exposure: 4964.67300367
- 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_52310cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52310cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,492,836,480 | 123,914,880 |
| Size | 1.4 GB
| 118.2 MB
|
| Events in quadrant A | 6,366,597 | 1,001,570 |
| Events in quadrant B | 9,793,318 | 1,004,242 |
| Events in quadrant C | 19,510,912 | 458,243 |
| Events in quadrant D | 18,754,445 | 537,825 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26414 | 2 |
| B | 0 | 36586 | 2 |
| C | 0 | 65426 | 2 |
| D | 0 | 63240 | 10 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 220 | 0 |
| B | 0 | 220 | 0 |
| C | 0 | 220 | 0 |
| D | 0 | 220 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 10827 | 404 | 3.731412% |
| B | 10828 | 1057 | 9.761729% |
| C | 10827 | 6383 | 58.954466% |
| D | 10826 | 4936 | 45.593941% |
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 | 12847 | 10827 | 253 | 253 | 1.97% | 2.34% |  |
| B | 12848 | 10828 | 778 | 778 | 6.06% | 7.19% |  |
| C | 12846 | 10827 | 5396 | 5396 | 42.01% | 49.84% |  |
| D | 12846 | 10826 | 4782 | 4782 | 37.23% | 44.17% |  |
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 | 12 | 3 | 348651 | 1234.51 | 1122 | 1093 | 281.5 |
| A | 3 | 48 | 266420 | 942.43 | 1122 | 1093 | 281.5 |
| A | 11 | 3 | 230813 | 815.96 | 1122 | 1093 | 281.5 |
| B | 10 | 254 | 2727277 | 11892.54 | 1092 | 1054 | 229.2 |
| B | 4 | 171 | 1061277 | 4624.99 | 1092 | 1054 | 229.2 |
| B | 0 | 216 | 443009 | 1927.93 | 1092 | 1054 | 229.2 |
| C | 0 | 161 | 6577630 | 32937.72 | 727 | 718 | 199.7 |
| C | 15 | 224 | 3994686 | 20002.12 | 727 | 718 | 199.7 |
| C | 9 | 38 | 2271119 | 11370.35 | 727 | 718 | 199.7 |
| D | 15 | 93 | 8232351 | 32989.37 | 855 | 814 | 249.5 |
| D | 12 | 2 | 3411801 | 13670.15 | 855 | 814 | 249.5 |
| D | 13 | 84 | 793366 | 3176.3 | 855 | 814 | 249.5 |
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 |  |