Observation information
- date-obs: 2025-12-03
- time-obs: 10:54:51.989500000
- date-end: 2025-12-04
- time-end: 02:47:54.840500000
- obs_id: A14_025T01_9000006530
- exposure: 24110.3532184
- sourceid: NGC 3227
- observer: arijit
- ra_pnt: 155.8774
- dec_pnt: 19.86505
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_025T01_9000006530_55097cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55097cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,660,985,280 | 376,266,240 |
| Size | 1.5 GB
| 358.8 MB
|
| Events in quadrant A | 11,975,767 | 2,484,352 |
| Events in quadrant B | 12,114,283 | 2,684,416 |
| Events in quadrant C | 16,331,715 | 2,343,291 |
| Events in quadrant D | 19,062,964 | 2,103,186 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 58050 | 3123 |
| B | 0 | 57422 | 2882 |
| C | 0 | 70409 | 3326 |
| D | 0 | 78725 | 3909 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 548 | 24 |
| B | 0 | 550 | 30 |
| C | 0 | 549 | 31 |
| D | 0 | 549 | 31 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 23 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 25854 | 217 | 0.839329% |
| B | 25882 | 224 | 0.865466% |
| C | 25825 | 586 | 2.269119% |
| D | 25802 | 1695 | 6.569258% |
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 | 57184 | 26064 | 118 | 118 | 0.21% | 0.45% |  |
| B | 57184 | 26082 | 39 | 39 | 0.07% | 0.15% |  |
| C | 57184 | 26070 | 592 | 592 | 1.04% | 2.27% |  |
| D | 57184 | 26040 | 1646 | 1646 | 2.88% | 6.32% |  |
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 | 61 | 433883 | 623.21 | 2829 | 2762 | 691.8 |
| A | 0 | 8 | 300759 | 430.77 | 2829 | 2762 | 691.8 |
| A | 4 | 3 | 143895 | 204.02 | 2829 | 2762 | 691.8 |
| B | 7 | 0 | 451687 | 749.41 | 2796 | 2694 | 599.1 |
| B | 5 | 185 | 263616 | 435.5 | 2796 | 2694 | 599.1 |
| B | 0 | 182 | 99885 | 162.22 | 2796 | 2694 | 599.1 |
| C | 9 | 38 | 3158416 | 4232.9 | 2739 | 2718 | 745.5 |
| C | 6 | 223 | 658225 | 879.26 | 2739 | 2718 | 745.5 |
| C | 13 | 3 | 646749 | 863.87 | 2739 | 2718 | 745.5 |
| D | 2 | 249 | 2965657 | 3934.19 | 2667 | 2554 | 753.2 |
| D | 9 | 1 | 882595 | 1168.45 | 2667 | 2554 | 753.2 |
| D | 6 | 239 | 665679 | 880.45 | 2667 | 2554 | 753.2 |
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 |  |