Observation information
- date-obs: 2025-04-30
- time-obs: 05:15:46.737000000
- date-end: 2025-04-30
- time-end: 07:10:46.057200000
- obs_id: C09_011T05_9000006466
- exposure: 3485.95504832
- 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_51861cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51861cztM0_level2_quad_clean.evt
|
Size (bytes) | 656,884,800 | 82,405,440 |
Size | 626.5 MB
| 78.6 MB
|
Events in quadrant A | 6,330,600 | 563,296 |
Events in quadrant B | 3,404,462 | 629,254 |
Events in quadrant C | 3,327,387 | 565,781 |
Events in quadrant D | 10,762,448 | 294,832 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23203 | 1 |
B | 0 | 14631 | 1 |
C | 0 | 14582 | 1 |
D | 0 | 36359 | 3 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 6 | 0 |
B | 0 | 6 | 0 |
C | 0 | 6 | 0 |
D | 0 | 6 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6330 | 345 | 5.450237% |
B | 6331 | 150 | 2.369294% |
C | 6331 | 85 | 1.342600% |
D | 6330 | 3109 | 49.115324% |
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 | 6902 | 6333 | 220 | 220 | 3.19% | 3.47% |  |
B | 6903 | 6334 | 63 | 63 | 0.91% | 0.99% |  |
C | 6903 | 6334 | 70 | 70 | 1.01% | 1.11% |  |
D | 6903 | 6334 | 2924 | 2924 | 42.36% | 46.16% |  |
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 | 2222303 | 13638.62 | 643 | 628 | 162.9 |
A | 11 | 3 | 383838 | 2352.48 | 643 | 628 | 162.9 |
A | 12 | 194 | 260733 | 1596.76 | 643 | 628 | 162.9 |
B | 5 | 185 | 178634 | 1288.85 | 647 | 625 | 138.1 |
B | 0 | 171 | 141190 | 1017.74 | 647 | 625 | 138.1 |
B | 4 | 81 | 100449 | 722.76 | 647 | 625 | 138.1 |
C | 13 | 3 | 385452 | 2205.4 | 630 | 623 | 174.5 |
C | 12 | 252 | 75178 | 427.26 | 630 | 623 | 174.5 |
C | 15 | 230 | 63542 | 360.58 | 630 | 623 | 174.5 |
D | 11 | 129 | 6713083 | 53262.88 | 448 | 431 | 126.0 |
D | 8 | 176 | 1668915 | 13238.92 | 448 | 431 | 126.0 |
D | 0 | 18 | 146690 | 1160.52 | 448 | 431 | 126.0 |
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 |  |