Observation information
- date-obs: 2025-05-14
- time-obs: 09:25:37.261400000
- date-end: 2025-05-14
- time-end: 10:53:43.248400000
- obs_id: C09_011T06_9000006468
- exposure: 1259.5502708
- 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_52071cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52071cztM0_level2_quad_clean.evt
|
Size (bytes) | 774,506,880 | 44,864,640 |
Size | 738.6 MB
| 42.8 MB
|
Events in quadrant A | 4,346,974 | 357,536 |
Events in quadrant B | 6,701,314 | 289,513 |
Events in quadrant C | 6,465,708 | 286,720 |
Events in quadrant D | 10,803,615 | 104,133 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16058 | 0 |
B | 0 | 23037 | 0 |
C | 0 | 22342 | 0 |
D | 0 | 35190 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8 | 0 |
B | 0 | 8 | 0 |
C | 0 | 8 | 0 |
D | 0 | 8 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 92 | 0 |
B | 0 | 92 | 0 |
C | 0 | 92 | 0 |
D | 0 | 92 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4554 | 784 | 17.215635% |
B | 4554 | 1798 | 39.481774% |
C | 4555 | 1622 | 35.609221% |
D | 4555 | 3511 | 77.080132% |
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 | 4554 | 4554 | 733 | 733 | 16.10% | 16.10% |  |
B | 4554 | 4554 | 1610 | 1610 | 35.35% | 35.35% |  |
C | 4554 | 4554 | 1268 | 1268 | 27.84% | 27.84% |  |
D | 4554 | 4554 | 3558 | 3558 | 78.13% | 78.13% |  |
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 | 95 | 1904915 | 17793.68 | 421 | 410 | 107.0 |
A | 6 | 196 | 187483 | 1747.81 | 421 | 410 | 107.0 |
A | 4 | 249 | 81545 | 758.04 | 421 | 410 | 107.0 |
B | 10 | 128 | 3052806 | 40673.71 | 350 | 338 | 75.0 |
B | 8 | 3 | 1752258 | 23344.09 | 350 | 338 | 75.0 |
B | 5 | 185 | 136198 | 1810.32 | 350 | 338 | 75.0 |
C | 15 | 224 | 4342095 | 41781.89 | 371 | 367 | 103.9 |
C | 13 | 3 | 225443 | 2165.98 | 371 | 367 | 103.9 |
C | 5 | 80 | 134814 | 1293.83 | 371 | 367 | 103.9 |
D | 6 | 42 | 4250006 | 52813.5 | 275 | 262 | 80.5 |
D | 15 | 94 | 3503281 | 43533.61 | 275 | 262 | 80.5 |
D | 8 | 176 | 475843 | 5910.26 | 275 | 262 | 80.5 |
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 |  |