Observation information
- date-obs: 2025-05-05
- time-obs: 06:36:06.726900000
- date-end: 2025-05-05
- time-end: 08:41:22.056900000
- obs_id: C09_011T05_9000006466
- exposure: 4777.85268313
- 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_51936cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51936cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,063,696,320 | 85,397,760 |
Size | 1014.4 MB
| 81.4 MB
|
Events in quadrant A | 7,693,084 | 619,733 |
Events in quadrant B | 7,760,992 | 611,611 |
Events in quadrant C | 11,897,156 | 426,991 |
Events in quadrant D | 11,443,534 | 403,528 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 150 | 0 |
B | 0 | 150 | 0 |
C | 0 | 150 | 0 |
D | 0 | 150 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28136 | 0 |
B | 0 | 28328 | 7 |
C | 0 | 40519 | 0 |
D | 0 | 39068 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7517 | 923 | 12.278835% |
B | 7516 | 1498 | 19.930814% |
C | 7516 | 3092 | 41.138904% |
D | 7516 | 2932 | 39.010112% |
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 | 7516 | 7516 | 822 | 822 | 10.94% | 10.94% |  |
B | 7515 | 7515 | 1252 | 1252 | 16.66% | 16.66% |  |
C | 7516 | 7516 | 2916 | 2916 | 38.80% | 38.80% |  |
D | 7515 | 7515 | 2885 | 2885 | 38.39% | 38.39% |  |
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 | 4 | 159 | 1777714 | 9752.62 | 727 | 710 | 182.2 |
A | 12 | 3 | 1108568 | 6080.19 | 727 | 710 | 182.2 |
A | 7 | 64 | 659684 | 3616.61 | 727 | 710 | 182.2 |
B | 12 | 32 | 3345717 | 22820.69 | 685 | 662 | 146.6 |
B | 4 | 81 | 482466 | 3286.97 | 685 | 662 | 146.6 |
B | 4 | 206 | 437717 | 2981.68 | 685 | 662 | 146.6 |
C | 15 | 224 | 5183655 | 30756.99 | 600 | 594 | 168.5 |
C | 15 | 230 | 976986 | 5794.04 | 600 | 594 | 168.5 |
C | 12 | 249 | 917848 | 5443.11 | 600 | 594 | 168.5 |
D | 0 | 33 | 3178266 | 18840.05 | 588 | 561 | 168.7 |
D | 2 | 172 | 1128894 | 6689.69 | 588 | 561 | 168.7 |
D | 6 | 42 | 1083522 | 6420.68 | 588 | 561 | 168.7 |
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 |  |