Observation information
- date-obs: 2025-05-14
- time-obs: 17:58:25.185400000
- date-end: 2025-05-14
- time-end: 19:58:46.168800000
- obs_id: C09_011T07_9000006470
- exposure: 1143.97849911
- 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_52077cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52077cztM0_level2_quad_clean.evt
|
Size (bytes) | 896,192,640 | 69,379,200 |
Size | 854.7 MB
| 66.2 MB
|
Events in quadrant A | 4,219,501 | 549,549 |
Events in quadrant B | 4,510,946 | 613,213 |
Events in quadrant C | 9,094,395 | 410,107 |
Events in quadrant D | 14,881,460 | 104,237 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16602 | 1 |
B | 0 | 17679 | 1 |
C | 0 | 31199 | 2 |
D | 0 | 48263 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6051 | 500 | 8.263097% |
B | 6052 | 348 | 5.750165% |
C | 6051 | 2195 | 36.274996% |
D | 6051 | 5081 | 83.969592% |
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 | 7221 | 6052 | 423 | 423 | 5.86% | 6.99% |  |
B | 7222 | 6052 | 257 | 257 | 3.56% | 4.25% |  |
C | 7220 | 6050 | 1987 | 1987 | 27.52% | 32.84% |  |
D | 7220 | 6050 | 5035 | 5035 | 69.74% | 83.22% |  |
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 | 3 | 95 | 1178456 | 7848.19 | 601 | 587 | 150.1 |
A | 6 | 196 | 162561 | 1079.24 | 601 | 587 | 150.1 |
A | 4 | 3 | 114249 | 757.33 | 601 | 587 | 150.1 |
B | 10 | 128 | 696883 | 5259.7 | 625 | 604 | 132.4 |
B | 5 | 185 | 507718 | 3830.75 | 625 | 604 | 132.4 |
B | 5 | 172 | 233942 | 1762.64 | 625 | 604 | 132.4 |
C | 15 | 224 | 5567334 | 38086.23 | 523 | 518 | 146.2 |
C | 12 | 252 | 351759 | 2403.07 | 523 | 518 | 146.2 |
C | 5 | 80 | 225124 | 1536.68 | 523 | 518 | 146.2 |
D | 15 | 94 | 10402680 | 124127.64 | 285 | 271 | 83.8 |
D | 6 | 42 | 2106568 | 25133.57 | 285 | 271 | 83.8 |
D | 3 | 12 | 565902 | 6749.44 | 285 | 271 | 83.8 |
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 |  |