Observation information
- date-obs: 2025-06-21
- time-obs: 04:57:02.533000000
- date-end: 2025-06-21
- time-end: 06:52:14.518400000
- obs_id: C09_011T06_9000006478
- exposure: 5842.55715567
- 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_9000006478_52633cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52633cztM0_level2_quad_clean.evt
|
| Size (bytes) | 644,477,760 | 92,773,440 |
| Size | 614.6 MB
| 88.5 MB
|
| Events in quadrant A | 3,575,633 | 628,433 |
| Events in quadrant B | 4,391,867 | 667,388 |
| Events in quadrant C | 8,410,236 | 518,609 |
| Events in quadrant D | 6,943,940 | 512,841 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15635 | 0 |
| B | 0 | 17942 | 0 |
| C | 0 | 29796 | 0 |
| D | 0 | 25532 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6913 | 67 | 0.969188% |
| B | 6913 | 181 | 2.618255% |
| C | 6913 | 1160 | 16.779980% |
| D | 6912 | 803 | 11.617477% |
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 | 6913 | 6913 | 59 | 59 | 0.85% | 0.85% |  |
| B | 6913 | 6913 | 72 | 72 | 1.04% | 1.04% |  |
| C | 6913 | 6913 | 1209 | 1209 | 17.49% | 17.49% |  |
| D | 6912 | 6912 | 732 | 732 | 10.59% | 10.59% |  |
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 | 3 | 46 | 255856 | 1423.78 | 703 | 684 | 179.2 |
| A | 4 | 249 | 140474 | 779.98 | 703 | 684 | 179.2 |
| A | 14 | 239 | 101558 | 562.85 | 703 | 684 | 179.2 |
| B | 10 | 254 | 625439 | 4223.8 | 692 | 667 | 147.9 |
| B | 8 | 234 | 297069 | 2003.84 | 692 | 667 | 147.9 |
| B | 10 | 44 | 194998 | 1313.78 | 692 | 667 | 147.9 |
| C | 15 | 248 | 4874000 | 27728.07 | 637 | 632 | 175.8 |
| C | 15 | 144 | 268938 | 1526.58 | 637 | 632 | 175.8 |
| C | 15 | 147 | 241522 | 1370.59 | 637 | 632 | 175.8 |
| D | 8 | 176 | 1764132 | 9483.28 | 649 | 621 | 186.0 |
| D | 6 | 42 | 1672687 | 8991.54 | 649 | 621 | 186.0 |
| D | 2 | 153 | 242781 | 1302.22 | 649 | 621 | 186.0 |
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 |  |