Observation information
- date-obs: 2025-05-02
- time-obs: 07:30:59.657600000
- date-end: 2025-05-02
- time-end: 09:31:40.642400000
- obs_id: C09_011T05_9000006466
- exposure: 3268.91832602
- 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_51892cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51892cztM0_level2_quad_clean.evt
|
| Size (bytes) | 893,033,280 | 87,730,560 |
| Size | 851.7 MB
| 83.7 MB
|
| Events in quadrant A | 6,020,390 | 644,571 |
| Events in quadrant B | 7,631,408 | 607,011 |
| Events in quadrant C | 4,978,529 | 627,881 |
| Events in quadrant D | 13,866,939 | 272,419 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22961 | 0 |
| B | 0 | 27658 | 0 |
| C | 0 | 19740 | 0 |
| D | 0 | 46207 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7241 | 232 | 3.203977% |
| B | 7242 | 1394 | 19.248826% |
| C | 7242 | 253 | 3.493510% |
| D | 7242 | 4304 | 59.431096% |
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 | 7241 | 7241 | 182 | 182 | 2.51% | 2.51% |  |
| B | 7242 | 7242 | 960 | 960 | 13.26% | 13.26% |  |
| C | 7242 | 7242 | 200 | 200 | 2.76% | 2.76% |  |
| D | 7242 | 7242 | 3442 | 3442 | 47.53% | 47.53% |  |
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 | 1495784 | 8166.29 | 737 | 717 | 183.1 |
| A | 15 | 174 | 499021 | 2721.81 | 737 | 717 | 183.1 |
| A | 12 | 194 | 178074 | 968.75 | 737 | 717 | 183.1 |
| B | 4 | 170 | 2252530 | 15493.78 | 684 | 661 | 145.3 |
| B | 12 | 32 | 1389821 | 9557.99 | 684 | 661 | 145.3 |
| B | 4 | 171 | 228596 | 1568.29 | 684 | 661 | 145.3 |
| C | 13 | 3 | 688277 | 3513.29 | 712 | 705 | 195.7 |
| C | 15 | 192 | 332045 | 1693.05 | 712 | 705 | 195.7 |
| C | 14 | 245 | 145573 | 740.23 | 712 | 705 | 195.7 |
| D | 11 | 129 | 8029051 | 60905.03 | 472 | 456 | 131.8 |
| D | 6 | 42 | 1302741 | 9879.15 | 472 | 456 | 131.8 |
| D | 12 | 17 | 690131 | 5231.88 | 472 | 456 | 131.8 |
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 |  |