Observation information
- date-obs: 2025-05-05
- time-obs: 17:00:43.986900000
- date-end: 2025-05-05
- time-end: 19:04:52.969500000
- obs_id: C09_011T06_9000006468
- exposure: 1877.00774777
- 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_51943cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51943cztM0_level2_quad_clean.evt
|
Size (bytes) | 992,321,280 | 71,504,640 |
Size | 946.4 MB
| 68.2 MB
|
Events in quadrant A | 8,373,782 | 488,896 |
Events in quadrant B | 4,948,009 | 637,404 |
Events in quadrant C | 9,498,608 | 411,053 |
Events in quadrant D | 13,418,246 | 180,673 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29368 | 4 |
B | 0 | 19148 | 1 |
C | 0 | 32693 | 1 |
D | 0 | 44305 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6398 | 1518 | 23.726164% |
B | 6399 | 451 | 7.047976% |
C | 6399 | 2339 | 36.552586% |
D | 6399 | 4702 | 73.480231% |
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 | 7448 | 6399 | 1452 | 1452 | 19.50% | 22.69% |  |
B | 7449 | 6400 | 207 | 207 | 2.78% | 3.23% |  |
C | 7449 | 6400 | 2175 | 2175 | 29.20% | 33.98% |  |
D | 7449 | 6400 | 4107 | 4107 | 55.13% | 64.17% |  |
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 | 239 | 1917633 | 12555.54 | 608 | 593 | 152.7 |
A | 12 | 3 | 1767706 | 11573.6 | 608 | 593 | 152.7 |
A | 7 | 64 | 1344477 | 8801.69 | 608 | 593 | 152.7 |
B | 12 | 32 | 962766 | 6881.73 | 659 | 639 | 139.8 |
B | 4 | 171 | 237270 | 1692.53 | 659 | 639 | 139.8 |
B | 5 | 32 | 165637 | 1180.17 | 659 | 639 | 139.8 |
C | 15 | 224 | 5565388 | 36297.88 | 549 | 546 | 153.3 |
C | 15 | 209 | 585889 | 3818.03 | 549 | 546 | 153.3 |
C | 15 | 147 | 489436 | 3188.89 | 549 | 546 | 153.3 |
D | 12 | 17 | 10004579 | 102366.82 | 340 | 325 | 97.7 |
D | 6 | 42 | 1335969 | 13666.75 | 340 | 325 | 97.7 |
D | 3 | 12 | 248937 | 2543.88 | 340 | 325 | 97.7 |
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 |  |