Observation information
- date-obs: 2025-05-08
- time-obs: 14:32:00.411000000
- date-end: 2025-05-08
- time-end: 16:31:35.393300000
- obs_id: C09_011T06_9000006468
- exposure: 1858.34517962
- 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_51986cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51986cztM0_level2_quad_clean.evt
|
Size (bytes) | 896,103,360 | 70,655,040 |
Size | 854.6 MB
| 67.4 MB
|
Events in quadrant A | 7,884,711 | 438,915 |
Events in quadrant B | 5,980,039 | 594,001 |
Events in quadrant C | 5,263,431 | 518,282 |
Events in quadrant D | 13,566,193 | 157,024 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27693 | 1 |
B | 0 | 22097 | 1 |
C | 0 | 19934 | 1 |
D | 0 | 44494 | 7 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6165 | 1790 | 29.034874% |
B | 6166 | 591 | 9.584820% |
C | 6166 | 692 | 11.222835% |
D | 6165 | 4534 | 73.544201% |
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 | 7175 | 6166 | 1514 | 1514 | 21.10% | 24.55% |  |
B | 7176 | 6167 | 429 | 429 | 5.98% | 6.96% |  |
C | 7176 | 6167 | 523 | 523 | 7.29% | 8.48% |  |
D | 7174 | 6164 | 4295 | 4295 | 59.87% | 69.68% |  |
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 | 4369028 | 31041.26 | 561 | 547 | 140.7 |
A | 7 | 174 | 269925 | 1914.13 | 561 | 547 | 140.7 |
A | 13 | 248 | 162327 | 1149.57 | 561 | 547 | 140.7 |
B | 10 | 128 | 1765489 | 13269.42 | 630 | 609 | 133.0 |
B | 4 | 206 | 322226 | 2418.11 | 630 | 609 | 133.0 |
B | 4 | 81 | 294622 | 2210.56 | 630 | 609 | 133.0 |
C | 15 | 224 | 1729603 | 10103.46 | 612 | 606 | 171.1 |
C | 13 | 3 | 600654 | 3506.4 | 612 | 606 | 171.1 |
C | 1 | 109 | 114751 | 667.01 | 612 | 606 | 171.1 |
D | 2 | 172 | 4713263 | 39804.1 | 413 | 396 | 118.4 |
D | 6 | 42 | 2565905 | 21667.86 | 413 | 396 | 118.4 |
D | 12 | 17 | 1888452 | 15946.21 | 413 | 396 | 118.4 |
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 |  |