Observation information
- date-obs: 2025-05-08
- time-obs: 19:33:44.367700000
- date-end: 2025-05-08
- time-end: 21:41:34.351100000
- obs_id: C09_011T06_9000006468
- exposure: 5643.0378933
- 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_011T06_9000006468_51989cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51989cztM0_level2_quad_clean.evt
|
Size (bytes) | 683,510,400 | 90,014,400 |
Size | 651.8 MB
| 85.8 MB
|
Events in quadrant A | 6,015,538 | 556,289 |
Events in quadrant B | 5,299,942 | 646,331 |
Events in quadrant C | 6,235,898 | 559,042 |
Events in quadrant D | 7,252,522 | 514,936 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22273 | 2 |
B | 0 | 20202 | 2 |
C | 0 | 23036 | 4 |
D | 0 | 26066 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 13 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6433 | 908 | 14.114721% |
B | 6433 | 544 | 8.456397% |
C | 6432 | 896 | 13.930348% |
D | 6432 | 841 | 13.075249% |
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 | 7642 | 6434 | 719 | 719 | 9.41% | 11.18% |  |
B | 7643 | 6435 | 289 | 289 | 3.78% | 4.49% |  |
C | 7642 | 6434 | 702 | 702 | 9.19% | 10.91% |  |
D | 7642 | 6433 | 729 | 729 | 9.54% | 11.33% |  |
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 | 2260582 | 13899.15 | 641 | 624 | 162.6 |
A | 2 | 48 | 242473 | 1487.42 | 641 | 624 | 162.6 |
A | 4 | 95 | 193518 | 1186.33 | 641 | 624 | 162.6 |
B | 4 | 206 | 748879 | 5342.93 | 668 | 648 | 140.0 |
B | 10 | 128 | 460947 | 3286.88 | 668 | 648 | 140.0 |
B | 5 | 172 | 184262 | 1311.14 | 668 | 648 | 140.0 |
C | 15 | 224 | 2828223 | 15688.1 | 642 | 634 | 180.2 |
C | 13 | 3 | 417533 | 2313.05 | 642 | 634 | 180.2 |
C | 12 | 252 | 122269 | 674.86 | 642 | 634 | 180.2 |
D | 8 | 176 | 1161825 | 6399.42 | 633 | 603 | 181.5 |
D | 12 | 17 | 1135066 | 6251.95 | 633 | 603 | 181.5 |
D | 2 | 172 | 782577 | 4309.41 | 633 | 603 | 181.5 |
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 |  |