Observation information
- date-obs: 2025-05-13
- time-obs: 15:57:16.405000000
- date-end: 2025-05-13
- time-end: 17:57:17.388700000
- obs_id: C09_011T06_9000006468
- exposure: 298.855458379
- 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_52061cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52061cztM0_level2_quad_clean.evt
|
Size (bytes) | 895,150,080 | 68,270,400 |
Size | 853.7 MB
| 65.1 MB
|
Events in quadrant A | 3,538,655 | 584,317 |
Events in quadrant B | 5,993,068 | 561,923 |
Events in quadrant C | 7,454,859 | 475,442 |
Events in quadrant D | 15,685,117 | 26,318 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14488 | 1 |
B | 0 | 21914 | 1 |
C | 0 | 26273 | 1 |
D | 0 | 50742 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 122 | 0 |
B | 0 | 122 | 0 |
C | 0 | 122 | 0 |
D | 0 | 122 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5996 | 199 | 3.318879% |
B | 5996 | 922 | 15.376918% |
C | 5996 | 1380 | 23.015344% |
D | 5996 | 5762 | 96.097398% |
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 | 7202 | 5997 | 130 | 130 | 1.81% | 2.17% |  |
B | 7202 | 5997 | 713 | 713 | 9.90% | 11.89% |  |
C | 7202 | 5996 | 1217 | 1217 | 16.90% | 20.30% |  |
D | 7201 | 5995 | 5668 | 5668 | 78.71% | 94.55% |  |
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 | 417766 | 2656.98 | 631 | 615 | 157.0 |
A | 4 | 3 | 181209 | 1150.27 | 631 | 615 | 157.0 |
A | 3 | 95 | 55289 | 348.24 | 631 | 615 | 157.0 |
B | 0 | 172 | 1414951 | 11154.28 | 605 | 585 | 126.8 |
B | 8 | 3 | 1157324 | 9122.53 | 605 | 585 | 126.8 |
B | 10 | 254 | 398405 | 3137.37 | 605 | 585 | 126.8 |
C | 15 | 224 | 3398358 | 21787.67 | 566 | 562 | 156.0 |
C | 12 | 249 | 602648 | 3860.75 | 566 | 562 | 156.0 |
C | 13 | 3 | 397937 | 2548.09 | 566 | 562 | 156.0 |
D | 15 | 94 | 9697973 | 161331.23 | 201 | 191 | 60.1 |
D | 6 | 42 | 2201399 | 36619.05 | 201 | 191 | 60.1 |
D | 12 | 3 | 987056 | 16417.38 | 201 | 191 | 60.1 |
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 |  |