Observation information
- date-obs: 2025-04-29
- time-obs: 01:33:30.345200000
- date-end: 2025-04-29
- time-end: 03:27:35.325400000
- obs_id: C09_011T05_9000006466
- exposure: 3909.96918112
- 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_51844cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51844cztM0_level2_quad_clean.evt
|
Size (bytes) | 662,996,160 | 74,422,080 |
Size | 632.3 MB
| 71.0 MB
|
Events in quadrant A | 4,374,731 | 512,700 |
Events in quadrant B | 6,062,440 | 552,571 |
Events in quadrant C | 5,113,338 | 452,633 |
Events in quadrant D | 8,549,775 | 336,083 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 118 | 0 |
B | 0 | 118 | 0 |
C | 0 | 118 | 0 |
D | 0 | 118 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17035 | 1 |
B | 0 | 22021 | 1 |
C | 0 | 19205 | 1 |
D | 0 | 29340 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5705 | 379 | 6.643295% |
B | 5706 | 585 | 10.252366% |
C | 5705 | 979 | 17.160386% |
D | 5705 | 2022 | 35.442594% |
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 | 6845 | 5706 | 330 | 330 | 4.82% | 5.78% |  |
B | 6846 | 5707 | 349 | 349 | 5.10% | 6.12% |  |
C | 6845 | 5706 | 739 | 739 | 10.80% | 12.95% |  |
D | 6845 | 5706 | 1894 | 1894 | 27.67% | 33.19% |  |
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 | 15 | 174 | 567976 | 4001.86 | 568 | 552 | 141.8 |
A | 12 | 3 | 463302 | 3263.63 | 568 | 552 | 141.8 |
A | 11 | 3 | 255706 | 1799.52 | 568 | 552 | 141.8 |
B | 10 | 254 | 1994199 | 16564.42 | 569 | 550 | 120.4 |
B | 4 | 206 | 389878 | 3234.77 | 569 | 550 | 120.4 |
B | 5 | 185 | 342521 | 2841.3 | 569 | 550 | 120.4 |
C | 15 | 218 | 1553568 | 10744.78 | 519 | 514 | 144.5 |
C | 15 | 219 | 570775 | 3945.34 | 519 | 514 | 144.5 |
C | 14 | 80 | 304838 | 2105.46 | 519 | 514 | 144.5 |
D | 11 | 129 | 5419123 | 42056.59 | 449 | 430 | 128.8 |
D | 7 | 96 | 331143 | 2566.79 | 449 | 430 | 128.8 |
D | 3 | 12 | 306628 | 2376.52 | 449 | 430 | 128.8 |
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 |  |