Observation information
- date-obs: 2025-05-04
- time-obs: 21:53:24.144300000
- date-end: 2025-05-04
- time-end: 23:59:05.126900000
- obs_id: C09_011T05_9000006466
- exposure: 2916.73009932
- 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_51931cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51931cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,035,400,320 | 67,936,320 |
Size | 987.4 MB
| 64.8 MB
|
Events in quadrant A | 7,829,806 | 523,819 |
Events in quadrant B | 11,012,179 | 316,839 |
Events in quadrant C | 9,588,112 | 401,706 |
Events in quadrant D | 9,406,511 | 369,937 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27737 | 1 |
B | 0 | 37088 | 1 |
C | 0 | 32888 | 1 |
D | 0 | 32352 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6361 | 988 | 15.532149% |
B | 6360 | 3801 | 59.764151% |
C | 6361 | 2422 | 38.075774% |
D | 6361 | 2319 | 36.456532% |
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 | 7541 | 6361 | 903 | 903 | 11.97% | 14.20% |  |
B | 7540 | 6361 | 2878 | 2878 | 38.17% | 45.24% |  |
C | 7541 | 6361 | 2215 | 2215 | 29.37% | 34.82% |  |
D | 7541 | 6362 | 2354 | 2354 | 31.22% | 37.00% |  |
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 | 1795022 | 11556.9 | 613 | 599 | 155.3 |
A | 7 | 64 | 1279055 | 8233.84 | 613 | 599 | 155.3 |
A | 4 | 175 | 679252 | 4370.83 | 613 | 599 | 155.3 |
B | 12 | 32 | 7925330 | 85145.16 | 438 | 424 | 93.1 |
B | 4 | 171 | 246374 | 2642.49 | 438 | 424 | 93.1 |
B | 4 | 206 | 224722 | 2409.86 | 438 | 424 | 93.1 |
C | 15 | 224 | 5354344 | 35963.12 | 526 | 523 | 148.9 |
C | 0 | 193 | 655067 | 4396.76 | 526 | 523 | 148.9 |
C | 15 | 230 | 339450 | 2276.67 | 526 | 523 | 148.9 |
D | 6 | 42 | 5287835 | 34630.58 | 524 | 499 | 152.7 |
D | 12 | 17 | 1098339 | 7190.55 | 524 | 499 | 152.7 |
D | 3 | 12 | 377409 | 2468.66 | 524 | 499 | 152.7 |
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 |  |