Observation information
- date-obs: 2025-05-01
- time-obs: 00:17:11.913300000
- date-end: 2025-05-01
- time-end: 02:19:56.884400000
- obs_id: C09_011T05_9000006466
- exposure: 4852.78157413
- 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_51873cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51873cztM0_level2_quad_clean.evt
|
Size (bytes) | 612,648,000 | 86,169,600 |
Size | 584.3 MB
| 82.2 MB
|
Events in quadrant A | 6,246,575 | 553,860 |
Events in quadrant B | 4,518,225 | 623,946 |
Events in quadrant C | 3,547,572 | 580,123 |
Events in quadrant D | 7,886,540 | 419,204 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 124 | 0 |
B | 0 | 124 | 0 |
C | 0 | 124 | 0 |
D | 0 | 124 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22901 | 1 |
B | 0 | 17672 | 1 |
C | 0 | 14891 | 1 |
D | 0 | 27746 | 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 | 6191 | 479 | 7.737038% |
B | 6191 | 375 | 6.057180% |
C | 6192 | 83 | 1.340439% |
D | 6192 | 1524 | 24.612403% |
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 | 7365 | 6196 | 327 | 327 | 4.44% | 5.28% |  |
B | 7365 | 6196 | 259 | 259 | 3.52% | 4.18% |  |
C | 7366 | 6197 | 79 | 79 | 1.07% | 1.27% |  |
D | 7366 | 6197 | 1447 | 1447 | 19.64% | 23.35% |  |
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 | 2008579 | 12943.14 | 621 | 607 | 155.1 |
A | 12 | 80 | 359239 | 2311.7 | 621 | 607 | 155.1 |
A | 15 | 174 | 287073 | 1846.52 | 621 | 607 | 155.1 |
B | 4 | 170 | 653905 | 4921.13 | 627 | 606 | 132.8 |
B | 4 | 81 | 394820 | 2969.51 | 627 | 606 | 132.8 |
B | 5 | 172 | 258849 | 1945.28 | 627 | 606 | 132.8 |
C | 13 | 3 | 319212 | 1852.0 | 622 | 616 | 172.0 |
C | 10 | 22 | 301385 | 1748.37 | 622 | 616 | 172.0 |
C | 15 | 189 | 112229 | 648.81 | 622 | 616 | 172.0 |
D | 11 | 129 | 4592201 | 31158.2 | 521 | 502 | 147.4 |
D | 8 | 176 | 569319 | 3859.86 | 521 | 502 | 147.4 |
D | 3 | 12 | 151776 | 1026.51 | 521 | 502 | 147.4 |
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 |  |