Observation information
- date-obs: 2025-05-08
- time-obs: 05:48:40.483600000
- date-end: 2025-05-08
- time-end: 07:51:50.467000000
- obs_id: C09_011T06_9000006468
- exposure: 2291.07010442
- 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_9000006468_51980cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51980cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,199,563,200 | 73,785,600 |
| Size | 1.1 GB
| 70.4 MB
|
| Events in quadrant A | 5,793,972 | 630,966 |
| Events in quadrant B | 6,906,189 | 631,230 |
| Events in quadrant C | 14,643,705 | 269,990 |
| Events in quadrant D | 16,490,083 | 187,013 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22315 | 0 |
| B | 0 | 25763 | 0 |
| C | 0 | 48571 | 0 |
| D | 0 | 53979 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7390 | 585 | 7.916103% |
| B | 7391 | 1279 | 17.304830% |
| C | 7391 | 4717 | 63.820863% |
| D | 7391 | 5361 | 72.534163% |
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 | 7390 | 7390 | 487 | 487 | 6.59% | 6.59% |  |
| B | 7391 | 7391 | 863 | 863 | 11.68% | 11.68% |  |
| C | 7391 | 7391 | 4317 | 4317 | 58.41% | 58.41% |  |
| D | 7390 | 7390 | 5266 | 5266 | 71.26% | 71.26% |  |
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 | 7 | 64 | 1879906 | 10230.68 | 736 | 719 | 183.7 |
| A | 5 | 241 | 179174 | 971.55 | 736 | 719 | 183.7 |
| A | 4 | 159 | 169713 | 920.04 | 736 | 719 | 183.7 |
| B | 12 | 32 | 2789073 | 18172.16 | 710 | 686 | 153.4 |
| B | 8 | 128 | 328479 | 2136.26 | 710 | 686 | 153.4 |
| B | 4 | 206 | 290242 | 1887.06 | 710 | 686 | 153.4 |
| C | 12 | 252 | 8515610 | 63925.91 | 476 | 473 | 133.2 |
| C | 15 | 224 | 3628421 | 27236.19 | 476 | 473 | 133.2 |
| C | 4 | 5 | 166372 | 1245.46 | 476 | 473 | 133.2 |
| D | 2 | 172 | 8229030 | 64164.63 | 448 | 427 | 128.2 |
| D | 7 | 126 | 1747244 | 13621.25 | 448 | 427 | 128.2 |
| D | 7 | 60 | 1282795 | 9999.59 | 448 | 427 | 128.2 |
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 |  |