Observation information
- date-obs: 2025-05-05
- time-obs: 01:36:39.113000000
- date-end: 2025-05-05
- time-end: 03:19:15.099900000
- obs_id: C09_011T05_9000006466
- exposure: 1938.65245461
- 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_51933cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51933cztM0_level2_quad_clean.evt
|
Size (bytes) | 838,609,920 | 59,322,240 |
Size | 799.8 MB
| 56.6 MB
|
Events in quadrant A | 4,912,937 | 449,622 |
Events in quadrant B | 6,190,763 | 454,391 |
Events in quadrant C | 7,973,251 | 346,788 |
Events in quadrant D | 11,552,881 | 170,828 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 110 | 2 |
B | 0 | 109 | 1 |
C | 0 | 108 | 0 |
D | 0 | 109 | 1 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 18468 | 76 |
B | 0 | 22145 | 28 |
C | 0 | 27491 | 84 |
D | 0 | 38186 | 178 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8 | 0 |
B | 0 | 8 | 0 |
C | 0 | 8 | 0 |
D | 0 | 8 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5346 | 591 | 11.054994% |
B | 5351 | 1139 | 21.285741% |
C | 5345 | 1844 | 34.499532% |
D | 5342 | 3612 | 67.615125% |
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 | 6151 | 5349 | 491 | 491 | 7.98% | 9.18% |  |
B | 6151 | 5353 | 995 | 995 | 16.18% | 18.59% |  |
C | 6154 | 5349 | 1757 | 1757 | 28.55% | 32.85% |  |
D | 6152 | 5344 | 3740 | 3740 | 60.79% | 69.99% |  |
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 | 7 | 64 | 1236521 | 9551.52 | 520 | 507 | 129.4 |
A | 12 | 3 | 756143 | 5839.31 | 520 | 507 | 129.4 |
A | 4 | 249 | 109576 | 842.85 | 520 | 507 | 129.4 |
B | 12 | 32 | 3438259 | 31436.96 | 502 | 484 | 109.4 |
B | 4 | 206 | 184422 | 1682.03 | 502 | 484 | 109.4 |
B | 10 | 247 | 118745 | 1081.45 | 502 | 484 | 109.4 |
C | 15 | 224 | 4072584 | 32453.71 | 449 | 444 | 125.5 |
C | 9 | 38 | 863309 | 6876.77 | 449 | 444 | 125.5 |
C | 15 | 189 | 260728 | 2074.38 | 449 | 444 | 125.5 |
D | 6 | 42 | 7622935 | 76324.49 | 346 | 331 | 99.9 |
D | 12 | 17 | 2041494 | 20437.99 | 346 | 331 | 99.9 |
D | 3 | 12 | 239566 | 2395.44 | 346 | 331 | 99.9 |
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 |  |