Observation information
- date-obs: 2025-06-22
- time-obs: 00:00:01.379300000
- date-end: 2025-06-22
- time-end: 00:11:21.378600000
- obs_id: C09_011T07_9000006480
- exposure: 26.0700007081
- 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_52644cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52644cztM0_level2_quad_clean.evt
|
| Size (bytes) | 95,451,840 | 7,459,200 |
| Size | 91.0 MB
| 7.1 MB
|
| Events in quadrant A | 742,022 | 49,188 |
| Events in quadrant B | 478,338 | 65,831 |
| Events in quadrant C | 1,598,099 | 1,021 |
| Events in quadrant D | 658,716 | 54,816 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2673 | 0 |
| B | 0 | 1895 | 0 |
| C | 0 | 5205 | 0 |
| D | 0 | 2429 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 681 | 168 | 24.669604% |
| B | 681 | 10 | 1.468429% |
| C | 681 | 660 | 96.916300% |
| D | 681 | 50 | 7.342144% |
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 | 680 | 680 | 154 | 154 | 22.65% | 22.65% |  |
| B | 681 | 681 | 7 | 7 | 1.03% | 1.03% |  |
| C | 680 | 680 | 602 | 602 | 88.53% | 88.53% |  |
| D | 681 | 681 | 54 | 54 | 7.93% | 7.93% |  |
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 | 8 | 9 | 429805 | 27222.59 | 54 | 52 | 15.8 |
| A | 4 | 249 | 27972 | 1768.59 | 54 | 52 | 15.8 |
| A | 3 | 14 | 15527 | 980.26 | 54 | 52 | 15.8 |
| B | 10 | 128 | 143683 | 9008.76 | 64 | 62 | 15.9 |
| B | 5 | 185 | 41802 | 2618.18 | 64 | 62 | 15.9 |
| B | 7 | 252 | 6137 | 381.06 | 64 | 62 | 15.9 |
| C | 15 | 178 | 1344970 | 212098.56 | 16 | 16 | 6.3 |
| C | 15 | 248 | 136914 | 21588.75 | 16 | 16 | 6.3 |
| C | 2 | 239 | 26585 | 4189.92 | 16 | 16 | 6.3 |
| D | 8 | 176 | 228946 | 11971.0 | 60 | 57 | 19.1 |
| D | 6 | 42 | 48616 | 2539.66 | 60 | 57 | 19.1 |
| D | 15 | 93 | 40335 | 2106.56 | 60 | 57 | 19.1 |
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 |  |