Observation information
- date-obs: 2025-05-02
- time-obs: 22:52:05.532900000
- date-end: 2025-05-03
- time-end: 01:11:14.513000000
- obs_id: C09_011T05_9000006466
- exposure: 5763.22442663
- 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_51902cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51902cztM0_level2_quad_clean.evt
|
Size (bytes) | 654,828,480 | 95,022,720 |
Size | 624.5 MB
| 90.6 MB
|
Events in quadrant A | 7,150,503 | 599,041 |
Events in quadrant B | 4,780,705 | 681,870 |
Events in quadrant C | 4,797,522 | 621,095 |
Events in quadrant D | 6,989,710 | 505,088 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 138 | 0 |
B | 0 | 138 | 0 |
C | 0 | 138 | 0 |
D | 0 | 138 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25962 | 2 |
B | 0 | 18979 | 2 |
C | 0 | 18951 | 2 |
D | 0 | 25523 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15 | 0 |
B | 0 | 16 | 0 |
C | 0 | 16 | 0 |
D | 0 | 16 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6738 | 635 | 9.424161% |
B | 6738 | 377 | 5.595132% |
C | 6738 | 280 | 4.155536% |
D | 6738 | 1097 | 16.280795% |
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 | 7863 | 6739 | 566 | 566 | 7.20% | 8.40% |  |
B | 7863 | 6739 | 225 | 225 | 2.86% | 3.34% |  |
C | 7863 | 6739 | 181 | 181 | 2.30% | 2.69% |  |
D | 7863 | 6739 | 906 | 906 | 11.52% | 13.44% |  |
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 | 15 | 174 | 1322177 | 7713.58 | 680 | 665 | 171.3 |
A | 12 | 3 | 876497 | 5112.18 | 680 | 665 | 171.3 |
A | 4 | 175 | 850481 | 4960.32 | 680 | 665 | 171.3 |
B | 4 | 171 | 846758 | 5789.69 | 692 | 668 | 146.1 |
B | 12 | 32 | 562602 | 3845.24 | 692 | 668 | 146.1 |
B | 0 | 213 | 81627 | 553.99 | 692 | 668 | 146.1 |
C | 15 | 178 | 358632 | 1878.14 | 683 | 677 | 190.6 |
C | 15 | 248 | 339251 | 1776.45 | 683 | 677 | 190.6 |
C | 15 | 224 | 285342 | 1493.6 | 683 | 677 | 190.6 |
D | 6 | 42 | 876677 | 4539.45 | 624 | 600 | 193.0 |
D | 12 | 17 | 735895 | 3809.98 | 624 | 600 | 193.0 |
D | 13 | 187 | 703927 | 3644.34 | 624 | 600 | 193.0 |
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 |  |