Observation information
- date-obs: 2025-05-08
- time-obs: 00:28:06.526300000
- date-end: 2025-05-08
- time-end: 02:40:00.495800000
- obs_id: C09_011T06_9000006468
- exposure: 5302.82744342
- 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_51977cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51977cztM0_level2_quad_clean.evt
|
Size (bytes) | 794,056,320 | 93,922,560 |
Size | 757.3 MB
| 89.6 MB
|
Events in quadrant A | 5,028,494 | 639,352 |
Events in quadrant B | 4,620,569 | 710,778 |
Events in quadrant C | 10,269,373 | 482,413 |
Events in quadrant D | 8,909,348 | 502,116 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20071 | 1 |
B | 0 | 19148 | 1 |
C | 0 | 35664 | 8 |
D | 0 | 31587 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 6 | 0 |
B | 0 | 6 | 0 |
C | 0 | 6 | 0 |
D | 0 | 6 | 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 | 7309 | 500 | 6.840881% |
B | 7309 | 331 | 4.528663% |
C | 7308 | 2324 | 31.800766% |
D | 7309 | 1547 | 21.165686% |
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 | 7914 | 7311 | 378 | 378 | 4.78% | 5.17% |  |
B | 7914 | 7311 | 202 | 202 | 2.55% | 2.76% |  |
C | 7913 | 7310 | 2032 | 2032 | 25.68% | 27.80% |  |
D | 7913 | 7309 | 1367 | 1367 | 17.28% | 18.70% |  |
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 | 1592655 | 8665.06 | 727 | 708 | 183.7 |
A | 5 | 240 | 109408 | 591.66 | 727 | 708 | 183.7 |
A | 4 | 3 | 89772 | 484.78 | 727 | 708 | 183.7 |
B | 8 | 128 | 384763 | 2492.52 | 737 | 712 | 154.1 |
B | 10 | 44 | 275244 | 1781.74 | 737 | 712 | 154.1 |
B | 4 | 81 | 128874 | 831.78 | 737 | 712 | 154.1 |
C | 15 | 224 | 4719000 | 27836.69 | 610 | 605 | 169.5 |
C | 12 | 252 | 2376257 | 14015.42 | 610 | 605 | 169.5 |
C | 13 | 3 | 259568 | 1527.78 | 610 | 605 | 169.5 |
D | 2 | 172 | 4065371 | 22030.04 | 652 | 625 | 184.5 |
D | 6 | 42 | 728427 | 3944.53 | 652 | 625 | 184.5 |
D | 8 | 176 | 387216 | 2095.24 | 652 | 625 | 184.5 |
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 |  |