Observation information
- date-obs: 2025-05-01
- time-obs: 19:07:05.761000000
- date-end: 2025-05-01
- time-end: 21:20:26.741600000
- obs_id: C09_011T05_9000006466
- exposure: 2293.52297157
- 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_51885cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51885cztM0_level2_quad_clean.evt
|
Size (bytes) | 807,647,040 | 82,324,800 |
Size | 770.2 MB
| 78.5 MB
|
Events in quadrant A | 7,152,332 | 579,561 |
Events in quadrant B | 4,946,121 | 663,431 |
Events in quadrant C | 4,537,475 | 595,223 |
Events in quadrant D | 12,759,285 | 202,449 |
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 | 25862 | 2 |
B | 0 | 19319 | 2 |
C | 0 | 18032 | 2 |
D | 0 | 42372 | 9 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15 | 0 |
B | 0 | 15 | 0 |
C | 0 | 15 | 0 |
D | 0 | 16 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6477 | 602 | 9.294426% |
B | 6477 | 303 | 4.678092% |
C | 6477 | 328 | 5.064073% |
D | 6476 | 4419 | 68.236566% |
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 | 7527 | 6478 | 417 | 417 | 5.54% | 6.44% |  |
B | 7527 | 6478 | 170 | 170 | 2.26% | 2.62% |  |
C | 7527 | 6478 | 180 | 180 | 2.39% | 2.78% |  |
D | 7526 | 6477 | 3411 | 3411 | 45.32% | 52.66% |  |
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 | 1745915 | 10434.45 | 668 | 652 | 167.3 |
A | 4 | 175 | 1083035 | 6471.27 | 668 | 652 | 167.3 |
A | 11 | 3 | 528173 | 3153.9 | 668 | 652 | 167.3 |
B | 10 | 44 | 897758 | 6238.99 | 680 | 657 | 143.8 |
B | 4 | 170 | 351084 | 2437.08 | 680 | 657 | 143.8 |
B | 0 | 171 | 273938 | 1900.56 | 680 | 657 | 143.8 |
C | 14 | 245 | 614285 | 3330.38 | 669 | 664 | 184.2 |
C | 13 | 3 | 372214 | 2016.56 | 669 | 664 | 184.2 |
C | 0 | 176 | 160048 | 865.04 | 669 | 664 | 184.2 |
D | 11 | 129 | 6839574 | 59414.83 | 404 | 390 | 115.1 |
D | 12 | 17 | 2296460 | 19946.91 | 404 | 390 | 115.1 |
D | 6 | 42 | 1109623 | 9636.37 | 404 | 390 | 115.1 |
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 |  |