Observation information
- date-obs: 2025-05-02
- time-obs: 04:05:39.684300000
- date-end: 2025-05-02
- time-end: 06:02:36.669000000
- obs_id: C09_011T05_9000006466
- exposure: 3092.1108883
- 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_011T05_9000006466_51890cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51890cztM0_level2_quad_clean.evt
|
| Size (bytes) | 801,336,960 | 82,275,840 |
| Size | 764.2 MB
| 78.5 MB
|
| Events in quadrant A | 5,860,930 | 603,909 |
| Events in quadrant B | 6,944,412 | 545,527 |
| Events in quadrant C | 3,763,287 | 604,831 |
| Events in quadrant D | 12,593,550 | 284,971 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21943 | 2 |
| B | 0 | 25119 | 2 |
| C | 0 | 15672 | 2 |
| D | 0 | 41892 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6472 | 327 | 5.052534% |
| B | 6473 | 1355 | 20.933107% |
| C | 6473 | 104 | 1.606674% |
| D | 6472 | 3773 | 58.297281% |
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 | 7017 | 6474 | 182 | 182 | 2.59% | 2.81% |  |
| B | 7018 | 6475 | 935 | 935 | 13.32% | 14.44% |  |
| C | 7018 | 6475 | 60 | 60 | 0.85% | 0.93% |  |
| D | 7017 | 6474 | 3183 | 3183 | 45.36% | 49.17% |  |
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 | 12 | 3 | 1932701 | 11500.37 | 665 | 648 | 168.0 |
| A | 12 | 194 | 228133 | 1354.08 | 665 | 648 | 168.0 |
| A | 5 | 240 | 148264 | 878.67 | 665 | 648 | 168.0 |
| B | 4 | 170 | 3170036 | 24578.08 | 610 | 591 | 129.0 |
| B | 10 | 254 | 381442 | 2953.38 | 610 | 591 | 129.0 |
| B | 4 | 171 | 370888 | 2871.54 | 610 | 591 | 129.0 |
| C | 13 | 3 | 298824 | 1644.6 | 653 | 648 | 181.3 |
| C | 15 | 248 | 170514 | 936.9 | 653 | 648 | 181.3 |
| C | 10 | 22 | 122079 | 669.76 | 653 | 648 | 181.3 |
| D | 11 | 129 | 7715424 | 58193.54 | 464 | 448 | 132.6 |
| D | 12 | 17 | 1050954 | 7923.9 | 464 | 448 | 132.6 |
| D | 8 | 176 | 582516 | 4390.5 | 464 | 448 | 132.6 |
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 |  |