Observation information
- date-obs: 2025-04-29
- time-obs: 18:42:11.177500000
- date-end: 2025-04-29
- time-end: 20:45:48.146900000
- obs_id: C09_011T05_9000006466
- exposure: 3232.01628685
- 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_011T05_9000006466_51855cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51855cztM0_level2_quad_clean.evt
|
Size (bytes) | 713,926,080 | 81,408,960 |
Size | 680.9 MB
| 77.6 MB
|
Events in quadrant A | 7,578,447 | 511,292 |
Events in quadrant B | 4,511,277 | 634,562 |
Events in quadrant C | 3,587,174 | 586,794 |
Events in quadrant D | 10,250,225 | 282,471 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27019 | 1 |
B | 0 | 17865 | 1 |
C | 0 | 15329 | 2 |
D | 0 | 34927 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6447 | 1183 | 18.349620% |
B | 6448 | 291 | 4.513027% |
C | 6447 | 122 | 1.892353% |
D | 6447 | 3376 | 52.365441% |
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 | 7416 | 6447 | 1151 | 1151 | 15.52% | 17.85% |  |
B | 7418 | 6448 | 251 | 251 | 3.38% | 3.89% |  |
C | 7417 | 6447 | 78 | 78 | 1.05% | 1.21% |  |
D | 7417 | 6447 | 2737 | 2737 | 36.90% | 42.45% |  |
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 | 4 | 249 | 1947994 | 12394.51 | 634 | 618 | 157.1 |
A | 0 | 228 | 994548 | 6326.09 | 634 | 618 | 157.1 |
A | 12 | 3 | 872744 | 5550.84 | 634 | 618 | 157.1 |
B | 1 | 255 | 509469 | 3636.24 | 662 | 639 | 139.9 |
B | 10 | 44 | 387958 | 2767.89 | 662 | 639 | 139.9 |
B | 0 | 171 | 152023 | 1081.83 | 662 | 639 | 139.9 |
C | 15 | 230 | 335727 | 1823.27 | 663 | 659 | 183.8 |
C | 15 | 192 | 154025 | 834.54 | 663 | 659 | 183.8 |
C | 13 | 3 | 131902 | 714.16 | 663 | 659 | 183.8 |
D | 11 | 129 | 7261755 | 59046.66 | 436 | 419 | 123.0 |
D | 7 | 96 | 734333 | 5967.93 | 436 | 419 | 123.0 |
D | 6 | 42 | 193050 | 1566.41 | 436 | 419 | 123.0 |
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 |  |