Observation information
- date-obs: 2025-05-04
- time-obs: 06:21:19.271800000
- date-end: 2025-05-04
- time-end: 08:22:46.256600000
- obs_id: C09_011T05_9000006466
- exposure: 3737.6058228
- 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_51921cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51921cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,125,950,400 | 78,258,240 |
Size | 1.0 GB
| 74.6 MB
|
Events in quadrant A | 12,944,431 | 348,941 |
Events in quadrant B | 4,351,094 | 702,004 |
Events in quadrant C | 13,416,690 | 333,298 |
Events in quadrant D | 10,405,144 | 477,234 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 146 | 0 |
B | 0 | 146 | 0 |
C | 0 | 146 | 0 |
D | 0 | 146 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 43479 | 3 |
B | 0 | 18117 | 0 |
C | 0 | 44902 | 0 |
D | 0 | 36027 | 9 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7286 | 3667 | 50.329399% |
B | 7287 | 307 | 4.212982% |
C | 7287 | 3969 | 54.466859% |
D | 7285 | 1744 | 23.939602% |
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 | 7287 | 7287 | 3456 | 3456 | 47.43% | 47.43% |  |
B | 7287 | 7287 | 187 | 187 | 2.57% | 2.57% |  |
C | 7287 | 7287 | 3670 | 3670 | 50.36% | 50.36% |  |
D | 7286 | 7285 | 1790 | 1790 | 24.57% | 24.57% |  |
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 | 8 | 248 | 6853049 | 47102.62 | 584 | 570 | 145.5 |
A | 15 | 174 | 965146 | 6630.31 | 584 | 570 | 145.5 |
A | 7 | 64 | 938672 | 6448.33 | 584 | 570 | 145.5 |
B | 12 | 32 | 536041 | 3415.85 | 730 | 705 | 156.7 |
B | 5 | 185 | 332525 | 2117.26 | 730 | 705 | 156.7 |
B | 8 | 128 | 99612 | 631.1 | 730 | 705 | 156.7 |
C | 15 | 158 | 4785889 | 33241.94 | 519 | 516 | 144.0 |
C | 15 | 224 | 4598154 | 31937.83 | 519 | 516 | 144.0 |
C | 13 | 3 | 533998 | 3705.87 | 519 | 516 | 144.0 |
D | 6 | 42 | 2923884 | 15139.54 | 637 | 611 | 193.1 |
D | 13 | 248 | 1237690 | 6406.79 | 637 | 611 | 193.1 |
D | 13 | 169 | 959544 | 4966.28 | 637 | 611 | 193.1 |
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 |  |