Observation information
- date-obs: 2025-05-14
- time-obs: 23:06:27.142600000
- date-end: 2025-05-15
- time-end: 01:12:40.125600000
- obs_id: C09_011T07_9000006470
- exposure: 41.9022411704
- 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_011T07_9000006470_52080cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52080cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,227,081,600 | 78,168,960 |
Size | 1.1 GB
| 74.5 MB
|
Events in quadrant A | 4,111,433 | 694,731 |
Events in quadrant B | 9,323,884 | 643,154 |
Events in quadrant C | 11,062,764 | 497,563 |
Events in quadrant D | 20,340,771 | 3,645 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 152 | 0 |
B | 0 | 152 | 0 |
C | 0 | 152 | 0 |
D | 0 | 152 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17763 | 0 |
B | 0 | 33107 | 0 |
C | 0 | 38135 | 0 |
D | 0 | 65657 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7574 | 97 | 1.280697% |
B | 7573 | 1429 | 18.869669% |
C | 7573 | 2544 | 33.593028% |
D | 7573 | 7541 | 99.577446% |
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 | 7574 | 7574 | 82 | 82 | 1.08% | 1.08% |  |
B | 7572 | 7572 | 1104 | 1104 | 14.58% | 14.58% |  |
C | 7573 | 7573 | 2414 | 2414 | 31.88% | 31.88% |  |
D | 7572 | 7572 | 7490 | 7490 | 98.92% | 98.92% |  |
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 | 6 | 196 | 281359 | 1427.42 | 776 | 757 | 196.6 |
A | 4 | 3 | 91665 | 462.45 | 776 | 757 | 196.6 |
A | 3 | 95 | 91634 | 462.29 | 776 | 757 | 196.6 |
B | 10 | 128 | 2050175 | 13049.54 | 736 | 711 | 157.1 |
B | 10 | 254 | 1792205 | 11406.97 | 736 | 711 | 157.1 |
B | 5 | 172 | 1321996 | 8413.01 | 736 | 711 | 157.1 |
C | 15 | 224 | 5278209 | 28703.37 | 664 | 659 | 183.9 |
C | 15 | 193 | 1182090 | 6425.53 | 664 | 659 | 183.9 |
C | 2 | 239 | 482934 | 2622.98 | 664 | 659 | 183.9 |
D | 15 | 94 | 19188754 | 541950.09 | 116 | 110 | 35.4 |
D | 6 | 42 | 171546 | 4841.91 | 116 | 110 | 35.4 |
D | 3 | 12 | 157002 | 4431.14 | 116 | 110 | 35.4 |
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 |  |