Observation information
- date-obs: 2025-06-24
- time-obs: 00:11:54.984600000
- date-end: 2025-06-24
- time-end: 02:34:26.953100000
- obs_id: C09_011T07_9000006480
- exposure: 3520.35981989
- 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_52675cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52675cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,119,764,160 | 91,961,280 |
| Size | 1.0 GB
| 87.7 MB
|
| Events in quadrant A | 5,516,354 | 719,040 |
| Events in quadrant B | 5,935,095 | 767,921 |
| Events in quadrant C | 16,478,841 | 307,461 |
| Events in quadrant D | 12,909,647 | 439,479 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 160 | 0 |
| B | 0 | 160 | 0 |
| C | 0 | 160 | 0 |
| D | 0 | 160 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21916 | 2 |
| B | 0 | 23158 | 2 |
| C | 0 | 54372 | 2 |
| D | 0 | 43734 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7914 | 314 | 3.967652% |
| B | 7913 | 361 | 4.562113% |
| C | 7913 | 4731 | 59.787691% |
| D | 7913 | 2984 | 37.710097% |
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 | 8034 | 7915 | 241 | 241 | 3.00% | 3.04% |  |
| B | 8033 | 7914 | 120 | 120 | 1.49% | 1.52% |  |
| C | 8033 | 7914 | 5076 | 5076 | 63.19% | 64.14% |  |
| D | 8033 | 7914 | 3205 | 3205 | 39.90% | 40.50% |  |
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 | 1086544 | 5316.31 | 809 | 788 | 204.2 |
| A | 4 | 249 | 384019 | 1876.46 | 809 | 788 | 204.2 |
| A | 13 | 248 | 126125 | 613.7 | 809 | 788 | 204.2 |
| B | 10 | 128 | 1334497 | 7847.78 | 806 | 776 | 169.9 |
| B | 12 | 32 | 384052 | 2255.24 | 806 | 776 | 169.9 |
| B | 4 | 171 | 214938 | 1260.15 | 806 | 776 | 169.9 |
| C | 15 | 248 | 13353331 | 89461.65 | 533 | 528 | 149.3 |
| C | 13 | 3 | 462177 | 3092.97 | 533 | 528 | 149.3 |
| C | 2 | 12 | 99382 | 662.31 | 533 | 528 | 149.3 |
| D | 8 | 176 | 7987383 | 41394.85 | 663 | 632 | 192.9 |
| D | 1 | 7 | 783338 | 4056.72 | 663 | 632 | 192.9 |
| D | 6 | 42 | 553122 | 2863.52 | 663 | 632 | 192.9 |
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 |  |