Observation information
- date-obs: 2025-05-03
- time-obs: 02:42:32.500100000
- date-end: 2025-05-03
- time-end: 04:37:05.484000000
- obs_id: C09_011T05_9000006466
- exposure: 4713.59367937
- 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_011T05_9000006466_51904cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51904cztM0_level2_quad_clean.evt
|
Size (bytes) | 737,619,840 | 77,633,280 |
Size | 703.4 MB
| 74.0 MB
|
Events in quadrant A | 7,537,075 | 439,538 |
Events in quadrant B | 6,724,088 | 524,583 |
Events in quadrant C | 4,972,096 | 547,206 |
Events in quadrant D | 7,595,082 | 409,019 |
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 M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26838 | 1 |
B | 0 | 24258 | 1 |
C | 0 | 19116 | 1 |
D | 0 | 26975 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 7 | 0 |
B | 0 | 7 | 0 |
C | 0 | 7 | 0 |
D | 0 | 7 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6153 | 1612 | 26.198602% |
B | 6153 | 1211 | 19.681456% |
C | 6154 | 278 | 4.517387% |
D | 6154 | 1478 | 24.016900% |
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 | 6873 | 6154 | 1203 | 1203 | 17.50% | 19.55% |  |
B | 6873 | 6154 | 915 | 915 | 13.31% | 14.87% |  |
C | 6874 | 6155 | 211 | 211 | 3.07% | 3.43% |  |
D | 6874 | 6155 | 1299 | 1299 | 18.90% | 21.10% |  |
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 | 3276951 | 22846.75 | 563 | 548 | 143.4 |
A | 12 | 3 | 648329 | 4517.05 | 563 | 548 | 143.4 |
A | 4 | 175 | 612042 | 4264.02 | 563 | 548 | 143.4 |
B | 5 | 172 | 2704950 | 21696.74 | 582 | 563 | 124.6 |
B | 12 | 32 | 458222 | 3671.7 | 582 | 563 | 124.6 |
B | 4 | 171 | 358788 | 2873.97 | 582 | 563 | 124.6 |
C | 15 | 192 | 773527 | 4599.41 | 606 | 601 | 168.0 |
C | 10 | 22 | 344709 | 2047.66 | 606 | 601 | 168.0 |
C | 15 | 248 | 339756 | 2018.19 | 606 | 601 | 168.0 |
D | 15 | 94 | 3011050 | 18399.05 | 527 | 508 | 163.6 |
D | 8 | 176 | 912768 | 5575.31 | 527 | 508 | 163.6 |
D | 6 | 42 | 447407 | 2731.24 | 527 | 508 | 163.6 |
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 |  |