Observation information
- date-obs: 2025-07-09
- time-obs: 23:59:06.865600000
- date-end: 2025-07-10
- time-end: 03:45:42.833000000
- obs_id: C09_011T06_9000006484
- exposure: 1.95493495464
- 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_9000006484_52913cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006484_52913cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,095,776,000 | 101,583,360 |
| Size | 2.0 GB
| 96.9 MB
|
| Events in quadrant A | 30,104,293 | 138 |
| Events in quadrant B | 6,669,250 | 1,191,829 |
| Events in quadrant C | 15,880,138 | 700,800 |
| Events in quadrant D | 23,994,205 | 345,178 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 98988 | 1723 |
| B | 0 | 28582 | 146 |
| C | 0 | 56501 | 793 |
| D | 0 | 80727 | 1243 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 250 | 0 |
| B | 0 | 250 | 4 |
| C | 0 | 250 | 0 |
| D | 0 | 250 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 12021 | 12020 | 99.991681% |
| B | 12173 | 176 | 1.445823% |
| C | 12110 | 4501 | 37.167630% |
| D | 12070 | 8340 | 69.096935% |
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 | 13596 | 12135 | 11194 | 11194 | 82.33% | 92.25% |  |
| B | 13596 | 12233 | 75 | 75 | 0.55% | 0.61% |  |
| C | 13596 | 12214 | 3330 | 3330 | 24.49% | 27.26% |  |
| D | 13596 | 12221 | 6885 | 6885 | 50.64% | 56.34% |  |
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 | 9 | 191 | 28486116 | 477438.57 | 227 | 221 | 59.7 |
| A | 8 | 25 | 304189 | 5094.66 | 227 | 221 | 59.7 |
| A | 12 | 17 | 154920 | 2592.84 | 227 | 221 | 59.7 |
| B | 12 | 32 | 750475 | 2852.33 | 1246 | 1201 | 262.7 |
| B | 1 | 255 | 414792 | 1574.45 | 1246 | 1201 | 262.7 |
| B | 0 | 213 | 112957 | 425.43 | 1246 | 1201 | 262.7 |
| C | 7 | 80 | 11085001 | 42696.39 | 945 | 938 | 259.6 |
| C | 13 | 3 | 326083 | 1252.48 | 945 | 938 | 259.6 |
| C | 1 | 45 | 124037 | 474.18 | 945 | 938 | 259.6 |
| D | 15 | 78 | 16641841 | 79353.48 | 712 | 680 | 209.7 |
| D | 8 | 176 | 2805877 | 13376.6 | 712 | 680 | 209.7 |
| D | 12 | 17 | 552029 | 2629.11 | 712 | 680 | 209.7 |
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 |  |