Observation information
- date-obs: 2025-05-03
- time-obs: 19:48:45.360500000
- date-end: 2025-05-03
- time-end: 21:56:30.342100000
- obs_id: C09_011T05_9000006466
- exposure: 1272.84753007
- 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_51915cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51915cztM0_level2_quad_clean.evt
|
Size (bytes) | 832,812,480 | 76,037,760 |
Size | 794.2 MB
| 72.5 MB
|
Events in quadrant A | 5,495,903 | 589,648 |
Events in quadrant B | 5,738,166 | 581,154 |
Events in quadrant C | 5,660,646 | 567,566 |
Events in quadrant D | 13,434,892 | 115,795 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20863 | 2 |
B | 0 | 21616 | 2 |
C | 0 | 21346 | 2 |
D | 0 | 44276 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 14 | 0 |
C | 0 | 14 | 0 |
D | 0 | 14 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6428 | 420 | 6.533914% |
B | 6428 | 1010 | 15.712508% |
C | 6427 | 614 | 9.553446% |
D | 6427 | 5279 | 82.137856% |
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 | 7563 | 6429 | 339 | 339 | 4.48% | 5.27% |  |
B | 7563 | 6429 | 708 | 708 | 9.36% | 11.01% |  |
C | 7562 | 6428 | 445 | 445 | 5.88% | 6.92% |  |
D | 7561 | 6426 | 4121 | 4121 | 54.50% | 64.13% |  |
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 | 12 | 3 | 1017812 | 6107.95 | 660 | 642 | 166.5 |
A | 7 | 64 | 575618 | 3452.64 | 660 | 642 | 166.5 |
A | 15 | 174 | 210415 | 1259.65 | 660 | 642 | 166.5 |
B | 4 | 171 | 1115267 | 8228.08 | 639 | 617 | 135.5 |
B | 5 | 32 | 906395 | 6686.24 | 639 | 617 | 135.5 |
B | 4 | 206 | 564716 | 4164.04 | 639 | 617 | 135.5 |
C | 15 | 158 | 1013661 | 5610.18 | 653 | 648 | 180.6 |
C | 15 | 231 | 470173 | 2600.28 | 653 | 648 | 180.6 |
C | 15 | 248 | 250391 | 1383.11 | 653 | 648 | 180.6 |
D | 15 | 94 | 8963501 | 107501.35 | 266 | 252 | 83.4 |
D | 12 | 17 | 2081109 | 24956.9 | 266 | 252 | 83.4 |
D | 3 | 12 | 642658 | 7704.74 | 266 | 252 | 83.4 |
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 |  |