Observation information
- date-obs: 2025-05-17
- time-obs: 05:27:17.690000000
- date-end: 2025-05-17
- time-end: 05:42:03.687900000
- obs_id: C09_011T07_9000006470
- exposure: 252.79441303
- 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_9000006470_52113cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52113cztM0_level2_quad_clean.evt
|
| Size (bytes) | 108,164,160 | 9,708,480 |
| Size | 103.2 MB
| 9.3 MB
|
| Events in quadrant A | 458,326 | 73,581 |
| Events in quadrant B | 530,994 | 79,131 |
| Events in quadrant C | 803,869 | 66,322 |
| Events in quadrant D | 2,143,183 | 9,359 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1905 | 0 |
| B | 0 | 2147 | 0 |
| C | 0 | 2958 | 0 |
| D | 0 | 6950 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 831 | 12 | 1.444043% |
| B | 827 | 4 | 0.483676% |
| C | 824 | 78 | 9.466019% |
| D | 826 | 826 | 100.000000% |
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 | 879 | 838 | 5 | 5 | 0.57% | 0.60% |  |
| B | 877 | 832 | 3 | 3 | 0.34% | 0.36% |  |
| C | 877 | 832 | 67 | 67 | 7.64% | 8.05% |  |
| D | 878 | 831 | 770 | 770 | 87.70% | 92.66% |  |
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 | 3 | 42834 | 1940.81 | 81 | 79 | 22.0 |
| A | 7 | 190 | 23166 | 1048.01 | 81 | 79 | 22.0 |
| A | 5 | 240 | 19943 | 901.7 | 81 | 79 | 22.0 |
| B | 0 | 197 | 82054 | 4355.04 | 79 | 76 | 18.8 |
| B | 4 | 171 | 37709 | 1999.24 | 79 | 76 | 18.8 |
| B | 10 | 254 | 31369 | 1662.43 | 79 | 76 | 18.8 |
| C | 15 | 224 | 441985 | 20547.24 | 72 | 72 | 21.5 |
| C | 10 | 171 | 35323 | 1639.04 | 72 | 72 | 21.5 |
| C | 15 | 232 | 13492 | 623.98 | 72 | 72 | 21.5 |
| D | 6 | 42 | 1470477 | 187066.75 | 21 | 20 | 7.9 |
| D | 12 | 17 | 279932 | 35609.49 | 21 | 20 | 7.9 |
| D | 15 | 94 | 157733 | 20063.73 | 21 | 20 | 7.9 |
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 |  |