Observation information
- date-obs: 2025-12-04
- time-obs: 12:48:11.747000000
- date-end: 2025-12-04
- time-end: 18:21:23.698100000
- obs_id: A14_025T01_9000006530
- exposure: 17349.3280243
- 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_55106cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55106cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,198,805,760 | 261,694,080 |
| Size | 1.1 GB
| 249.6 MB
|
| Events in quadrant A | 8,852,827 | 1,734,298 |
| Events in quadrant B | 9,260,092 | 1,810,786 |
| Events in quadrant C | 10,297,363 | 1,626,471 |
| Events in quadrant D | 14,506,326 | 1,453,297 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 40736 | 4 |
| B | 0 | 41537 | 10 |
| C | 0 | 44815 | 6 |
| D | 0 | 56634 | 10 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 382 | 0 |
| B | 0 | 382 | 0 |
| C | 0 | 382 | 0 |
| D | 0 | 382 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18835 | 331 | 1.757367% |
| B | 18831 | 710 | 3.770379% |
| C | 18834 | 524 | 2.782202% |
| D | 18834 | 1676 | 8.898800% |
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 | 19992 | 18840 | 120 | 120 | 0.60% | 0.64% |  |
| B | 19992 | 18838 | 380 | 380 | 1.90% | 2.02% |  |
| C | 19993 | 18841 | 303 | 303 | 1.52% | 1.61% |  |
| D | 19993 | 18840 | 1267 | 1267 | 6.34% | 6.73% |  |
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 | 0 | 8 | 590912 | 1182.29 | 2025 | 1970 | 498.1 |
| A | 7 | 190 | 143610 | 284.34 | 2025 | 1970 | 498.1 |
| A | 7 | 14 | 102236 | 201.28 | 2025 | 1970 | 498.1 |
| B | 5 | 172 | 1058181 | 2511.11 | 1961 | 1886 | 420.6 |
| B | 2 | 249 | 84402 | 196.16 | 1961 | 1886 | 420.6 |
| B | 10 | 247 | 77903 | 180.71 | 1961 | 1886 | 420.6 |
| C | 13 | 3 | 723373 | 1356.54 | 1964 | 1949 | 531.8 |
| C | 9 | 38 | 670555 | 1257.22 | 1964 | 1949 | 531.8 |
| C | 6 | 223 | 462156 | 865.36 | 1964 | 1949 | 531.8 |
| D | 6 | 239 | 3410319 | 6357.93 | 1904 | 1822 | 536.1 |
| D | 7 | 96 | 819930 | 1526.03 | 1904 | 1822 | 536.1 |
| D | 15 | 94 | 757764 | 1410.07 | 1904 | 1822 | 536.1 |
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 |  |