Observation information
- date-obs: 2026-05-01
- time-obs: 14:09:40.268500000
- date-end: 2026-05-01
- time-end: 16:17:29.246400000
- obs_id: A14_049T03_9000006570
- exposure: 5961.25166088
- sourceid: NGC 1796
- observer: amrutha
- ra_pnt: 75.67679
- dec_pnt: -61.13996
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_049T03_9000006570_57305cztM0_level2.fits
| modeM0/AS1A14_049T03_9000006570_57305cztM0_level2_quad_clean.evt
|
| Size (bytes) | 446,895,360 | 97,888,320 |
| Size | 426.2 MB
| 93.4 MB
|
| Events in quadrant A | 3,372,606 | 657,623 |
| Events in quadrant B | 3,407,271 | 695,885 |
| Events in quadrant C | 4,717,437 | 576,650 |
| Events in quadrant D | 4,541,132 | 582,014 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14364 | 2 |
| B | 0 | 14611 | 2 |
| C | 0 | 18630 | 2 |
| D | 0 | 17946 | 5 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 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 | 6484 | 58 | 0.894510% |
| B | 6485 | 131 | 2.020046% |
| C | 6485 | 540 | 8.326908% |
| D | 6484 | 136 | 2.097471% |
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 | 7669 | 6485 | 17 | 17 | 0.22% | 0.26% |  |
| B | 7670 | 6486 | 58 | 58 | 0.76% | 0.89% |  |
| C | 7670 | 6486 | 437 | 437 | 5.70% | 6.74% |  |
| D | 7669 | 6485 | 134 | 134 | 1.75% | 2.07% |  |
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 | 14 | 337682 | 1909.63 | 722 | 704 | 176.5 |
| A | 8 | 4 | 79229 | 445.0 | 722 | 704 | 176.5 |
| A | 0 | 12 | 67692 | 379.62 | 722 | 704 | 176.5 |
| B | 5 | 185 | 287893 | 1881.36 | 708 | 681 | 152.7 |
| B | 10 | 16 | 104114 | 677.53 | 708 | 681 | 152.7 |
| B | 7 | 252 | 48180 | 311.14 | 708 | 681 | 152.7 |
| C | 15 | 224 | 1851908 | 10359.85 | 652 | 644 | 178.7 |
| C | 14 | 254 | 176807 | 985.83 | 652 | 644 | 178.7 |
| C | 6 | 223 | 28052 | 153.38 | 652 | 644 | 178.7 |
| D | 2 | 249 | 858368 | 4433.78 | 686 | 653 | 193.4 |
| D | 3 | 224 | 683633 | 3530.52 | 686 | 653 | 193.4 |
| D | 2 | 31 | 104277 | 535.66 | 686 | 653 | 193.4 |
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 |  |