Observation information
- date-obs: 2025-06-23
- time-obs: 15:52:17.520900000
- date-end: 2025-06-23
- time-end: 17:50:27.035800000
- obs_id: C09_011T07_9000006480
- exposure: 3338.51118141
- 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_52670cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52670cztM0_level2_quad_clean.evt
|
| Size (bytes) | 761,031,360 | 78,013,440 |
| Size | 725.8 MB
| 74.4 MB
|
| Events in quadrant A | 4,621,707 | 574,602 |
| Events in quadrant B | 6,891,419 | 563,116 |
| Events in quadrant C | 5,591,033 | 505,746 |
| Events in quadrant D | 10,607,078 | 302,866 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17939 | 1 |
| B | 0 | 24572 | 1 |
| C | 0 | 20706 | 1 |
| D | 0 | 35672 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5950 | 131 | 2.201681% |
| B | 5951 | 791 | 13.291884% |
| C | 5951 | 685 | 11.510670% |
| D | 5951 | 2848 | 47.857503% |
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 | 7090 | 5950 | 41 | 41 | 0.58% | 0.69% |  |
| B | 7091 | 5951 | 670 | 670 | 9.45% | 11.26% |  |
| C | 7091 | 5951 | 618 | 618 | 8.72% | 10.38% |  |
| D | 7091 | 5951 | 2901 | 2901 | 40.91% | 48.75% |  |
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 | 14 | 1663300 | 10690.37 | 620 | 604 | 155.5 |
| A | 12 | 80 | 135002 | 864.12 | 620 | 604 | 155.5 |
| A | 11 | 7 | 50348 | 319.83 | 620 | 604 | 155.5 |
| B | 10 | 128 | 3338182 | 26452.9 | 596 | 577 | 126.2 |
| B | 2 | 249 | 594925 | 4710.63 | 596 | 577 | 126.2 |
| B | 10 | 254 | 159839 | 1262.27 | 596 | 577 | 126.2 |
| C | 15 | 248 | 1314444 | 8040.29 | 588 | 581 | 163.4 |
| C | 13 | 3 | 883245 | 5401.53 | 588 | 581 | 163.4 |
| C | 15 | 160 | 250496 | 1529.37 | 588 | 581 | 163.4 |
| D | 6 | 42 | 5654447 | 40619.65 | 475 | 452 | 139.2 |
| D | 3 | 12 | 918803 | 6597.65 | 475 | 452 | 139.2 |
| D | 8 | 176 | 846015 | 6074.72 | 475 | 452 | 139.2 |
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 |  |