Observation information
- date-obs: 2025-05-06
- time-obs: 06:51:56.870800000
- date-end: 2025-05-06
- time-end: 08:59:45.854100000
- obs_id: C09_011T06_9000006468
- exposure: 4606.79195315
- 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_51951cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51951cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,010,540,160 | 88,237,440 |
Size | 963.7 MB
| 84.1 MB
|
Events in quadrant A | 8,975,433 | 563,364 |
Events in quadrant B | 4,123,050 | 752,793 |
Events in quadrant C | 12,390,300 | 406,935 |
Events in quadrant D | 11,325,409 | 414,144 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31918 | 0 |
B | 0 | 17735 | 0 |
C | 0 | 42043 | 0 |
D | 0 | 39042 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 154 | 0 |
B | 0 | 154 | 0 |
C | 0 | 154 | 0 |
D | 0 | 154 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7669 | 1695 | 22.101969% |
B | 7670 | 125 | 1.629726% |
C | 7670 | 3452 | 45.006519% |
D | 7670 | 2885 | 37.614081% |
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 | 7669 | 7669 | 1352 | 1352 | 17.63% | 17.63% |  |
B | 7670 | 7670 | 56 | 56 | 0.73% | 0.73% |  |
C | 7670 | 7670 | 2784 | 2784 | 36.30% | 36.30% |  |
D | 7670 | 7670 | 2426 | 2426 | 31.63% | 31.63% |  |
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 | 7 | 64 | 2472616 | 14043.2 | 710 | 692 | 176.0 |
A | 4 | 159 | 2191180 | 12444.34 | 710 | 692 | 176.0 |
A | 4 | 249 | 345660 | 1959.79 | 710 | 692 | 176.0 |
B | 4 | 81 | 151359 | 894.26 | 781 | 754 | 168.4 |
B | 4 | 201 | 100236 | 590.7 | 781 | 754 | 168.4 |
B | 10 | 44 | 68291 | 401.02 | 781 | 754 | 168.4 |
C | 15 | 224 | 5528793 | 33773.9 | 589 | 585 | 163.7 |
C | 13 | 3 | 2959564 | 18077.51 | 589 | 585 | 163.7 |
C | 4 | 5 | 711978 | 4346.17 | 589 | 585 | 163.7 |
D | 12 | 16 | 5088501 | 29613.27 | 599 | 569 | 171.8 |
D | 6 | 42 | 1431668 | 8329.42 | 599 | 569 | 171.8 |
D | 7 | 60 | 949462 | 5522.84 | 599 | 569 | 171.8 |
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 |  |