Observation information
- date-obs: 2025-05-13
- time-obs: 19:19:12.377300000
- date-end: 2025-05-13
- time-end: 21:24:04.358600000
- obs_id: C09_011T06_9000006468
- exposure: 14.9616847038
- 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_52063cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52063cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,263,464,640 | 48,159,360 |
Size | 1.2 GB
| 45.9 MB
|
Events in quadrant A | 4,751,438 | 585,521 |
Events in quadrant B | 15,188,042 | 1,880 |
Events in quadrant C | 9,437,956 | 416,875 |
Events in quadrant D | 16,896,703 | 4,789 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 18523 | 1 |
B | 0 | 49511 | 1 |
C | 0 | 32440 | 1 |
D | 0 | 54550 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 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 | 6432 | 439 | 6.825249% |
B | 6433 | 6424 | 99.860096% |
C | 6433 | 2390 | 37.152184% |
D | 6433 | 6397 | 99.440386% |
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 | 7492 | 6433 | 412 | 412 | 5.50% | 6.40% |  |
B | 7492 | 6432 | 6067 | 6067 | 80.98% | 94.33% |  |
C | 7493 | 6434 | 2052 | 2052 | 27.39% | 31.89% |  |
D | 7492 | 6432 | 6227 | 6227 | 83.12% | 96.81% |  |
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 | 43 | 982054 | 6123.3 | 650 | 634 | 160.3 |
A | 6 | 196 | 238175 | 1482.07 | 650 | 634 | 160.3 |
A | 11 | 3 | 221503 | 1378.05 | 650 | 634 | 160.3 |
B | 8 | 3 | 14304727 | 560599.84 | 112 | 108 | 25.5 |
B | 10 | 254 | 171405 | 6713.15 | 112 | 108 | 25.5 |
B | 5 | 172 | 134646 | 5272.56 | 112 | 108 | 25.5 |
C | 15 | 224 | 5014860 | 32948.3 | 544 | 536 | 152.2 |
C | 15 | 219 | 951851 | 6250.93 | 544 | 536 | 152.2 |
C | 13 | 3 | 280722 | 1841.06 | 544 | 536 | 152.2 |
D | 15 | 94 | 9558455 | 172994.43 | 184 | 175 | 55.3 |
D | 6 | 42 | 2384264 | 43149.41 | 184 | 175 | 55.3 |
D | 13 | 187 | 1892752 | 34253.58 | 184 | 175 | 55.3 |
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 |  |