Observation information
- date-obs: 2025-05-15
- time-obs: 23:20:06.941400000
- date-end: 2025-05-16
- time-end: 01:33:16.924400000
- obs_id: C09_011T07_9000006470
- exposure: 899.032181442
- 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_52095cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52095cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,109,430,720 | 89,951,040 |
Size | 1.0 GB
| 85.8 MB
|
Events in quadrant A | 6,537,282 | 727,521 |
Events in quadrant B | 6,937,821 | 783,933 |
Events in quadrant C | 11,775,041 | 611,629 |
Events in quadrant D | 15,197,988 | 39,365 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 160 | 0 |
B | 0 | 160 | 0 |
C | 0 | 160 | 0 |
D | 0 | 160 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24846 | 0 |
B | 0 | 26220 | 0 |
C | 0 | 40559 | 0 |
D | 0 | 50794 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7990 | 419 | 5.244055% |
B | 7991 | 481 | 6.019272% |
C | 7991 | 2725 | 34.100863% |
D | 7990 | 7990 | 100.000000% |
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 | 7990 | 7990 | 521 | 521 | 6.52% | 6.52% |  |
B | 7991 | 7991 | 348 | 348 | 4.35% | 4.35% |  |
C | 7991 | 7991 | 2410 | 2410 | 30.16% | 30.16% |  |
D | 7990 | 7990 | 3594 | 3594 | 44.98% | 44.98% |  |
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 | 1387807 | 6855.09 | 811 | 789 | 202.3 |
A | 8 | 43 | 932370 | 4604.17 | 811 | 789 | 202.3 |
A | 3 | 231 | 220489 | 1085.83 | 811 | 789 | 202.3 |
B | 10 | 254 | 2123509 | 12380.68 | 812 | 782 | 171.5 |
B | 5 | 172 | 252648 | 1468.99 | 812 | 782 | 171.5 |
B | 8 | 3 | 211362 | 1228.2 | 812 | 782 | 171.5 |
C | 15 | 224 | 5591569 | 29003.9 | 690 | 683 | 192.8 |
C | 5 | 80 | 2102628 | 10904.28 | 690 | 683 | 192.8 |
C | 15 | 248 | 394185 | 2041.37 | 690 | 683 | 192.8 |
D | 15 | 94 | 8290667 | 410547.2 | 64 | 61 | 20.2 |
D | 12 | 17 | 5225921 | 258782.31 | 64 | 61 | 20.2 |
D | 6 | 42 | 1117729 | 55346.43 | 64 | 61 | 20.2 |
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 |  |