Observation information
- date-obs: 2025-05-27
- time-obs: 04:01:25.744800000
- date-end: 2025-05-27
- time-end: 04:43:58.729300000
- obs_id: C09_011T05_9000006474
- exposure: 159.330358684
- 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_52260cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52260cztM0_level2_quad_clean.evt
|
| Size (bytes) | 255,070,080 | 18,368,640 |
| Size | 243.3 MB
| 17.5 MB
|
| Events in quadrant A | 1,026,970 | 159,029 |
| Events in quadrant B | 2,618,240 | 116,671 |
| Events in quadrant C | 3,941,711 | 16,126 |
| Events in quadrant D | 1,722,618 | 140,486 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4253 | 1 |
| B | 0 | 8953 | 1 |
| C | 0 | 12822 | 1 |
| D | 0 | 6303 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 38 | 0 |
| B | 0 | 38 | 0 |
| C | 0 | 38 | 0 |
| D | 0 | 38 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1679 | 43 | 2.561048% |
| B | 1679 | 667 | 39.726027% |
| C | 1679 | 1553 | 92.495533% |
| D | 1679 | 135 | 8.040500% |
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 | 2554 | 1680 | 25 | 25 | 0.98% | 1.49% |  |
| B | 2554 | 1678 | 409 | 409 | 16.01% | 24.37% |  |
| C | 2553 | 1678 | 1337 | 1337 | 52.37% | 79.68% |  |
| D | 2554 | 1680 | 132 | 132 | 5.17% | 7.86% |  |
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 | 80 | 146252 | 3136.05 | 180 | 174 | 46.6 |
| A | 15 | 174 | 58159 | 1244.84 | 180 | 174 | 46.6 |
| A | 5 | 240 | 20304 | 432.15 | 180 | 174 | 46.6 |
| B | 10 | 254 | 867377 | 24256.69 | 156 | 151 | 35.8 |
| B | 12 | 32 | 657184 | 18377.5 | 156 | 151 | 35.8 |
| B | 7 | 0 | 162492 | 4540.75 | 156 | 151 | 35.8 |
| C | 15 | 158 | 2502836 | 97510.57 | 88 | 87 | 25.7 |
| C | 15 | 224 | 492349 | 19179.21 | 88 | 87 | 25.7 |
| C | 15 | 178 | 297340 | 11581.39 | 88 | 87 | 25.7 |
| D | 6 | 42 | 585299 | 11612.6 | 169 | 161 | 50.4 |
| D | 8 | 176 | 209779 | 4160.06 | 169 | 161 | 50.4 |
| D | 7 | 96 | 95080 | 1883.75 | 169 | 161 | 50.4 |
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 |  |