Observation information
- date-obs: 2025-05-10
- time-obs: 06:21:41.826000000
- date-end: 2025-05-10
- time-end: 11:38:36.040700000
- obs_id: C09_011T06_9000006468
- exposure: 9540.95831561
- 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_52012cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52012cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,125,180,800 | 217,889,280 |
Size | 2.0 GB
| 207.8 MB
|
Events in quadrant A | 11,308,578 | 1,602,910 |
Events in quadrant B | 16,756,568 | 1,608,670 |
Events in quadrant C | 15,812,696 | 1,398,584 |
Events in quadrant D | 33,404,143 | 745,661 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 45505 | 2 |
B | 0 | 62336 | 2 |
C | 0 | 59727 | 2 |
D | 0 | 111727 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 364 | 0 |
B | 0 | 364 | 0 |
C | 0 | 364 | 0 |
D | 0 | 364 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 17985 | 597 | 3.319433% |
B | 17986 | 1942 | 10.797287% |
C | 17986 | 2101 | 11.681308% |
D | 17986 | 9240 | 51.373290% |
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 | 19015 | 17985 | 201 | 201 | 1.06% | 1.12% |  |
B | 19016 | 17986 | 1174 | 1174 | 6.17% | 6.53% |  |
C | 19016 | 17987 | 1902 | 1902 | 10.00% | 10.57% |  |
D | 19016 | 17986 | 9110 | 9110 | 47.91% | 50.65% |  |
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 | 3 | 14 | 1129957 | 2418.52 | 1888 | 1842 | 466.4 |
A | 4 | 3 | 754282 | 1613.13 | 1888 | 1842 | 466.4 |
A | 4 | 95 | 520778 | 1112.53 | 1888 | 1842 | 466.4 |
B | 7 | 0 | 4182222 | 10817.52 | 1829 | 1764 | 386.5 |
B | 4 | 206 | 2361890 | 6107.16 | 1829 | 1764 | 386.5 |
B | 5 | 185 | 520466 | 1342.21 | 1829 | 1764 | 386.5 |
C | 15 | 224 | 4205376 | 8641.71 | 1765 | 1750 | 486.4 |
C | 13 | 3 | 994829 | 2041.55 | 1765 | 1750 | 486.4 |
C | 15 | 147 | 904180 | 1855.19 | 1765 | 1750 | 486.4 |
D | 12 | 17 | 13050890 | 32810.92 | 1367 | 1306 | 397.7 |
D | 6 | 42 | 4724248 | 11875.02 | 1367 | 1306 | 397.7 |
D | 13 | 187 | 3133685 | 7875.82 | 1367 | 1306 | 397.7 |
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 |  |