Observation information
- date-obs: 2025-12-02
- time-obs: 14:35:32.180600000
- date-end: 2025-12-03
- time-end: 04:15:36.050500000
- obs_id: A14_025T01_9000006530
- exposure: 38597.5906605
- 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_55083cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55083cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,915,795,520 | 609,376,320 |
| Size | 2.7 GB
| 581.1 MB
|
| Events in quadrant A | 29,981,674 | 3,881,766 |
| Events in quadrant B | 19,719,993 | 4,406,310 |
| Events in quadrant C | 19,699,446 | 3,893,074 |
| Events in quadrant D | 35,243,345 | 3,348,181 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 119727 | 14 |
| B | 0 | 89875 | 8 |
| C | 0 | 90928 | 11 |
| D | 0 | 135258 | 10 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 870 | 0 |
| B | 0 | 870 | 0 |
| C | 0 | 870 | 0 |
| D | 0 | 870 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 65 | 0 |
| B | 0 | 65 | 0 |
| C | 0 | 65 | 0 |
| D | 0 | 65 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 42538 | 2967 | 6.974940% |
| B | 42539 | 620 | 1.457486% |
| C | 42539 | 434 | 1.020240% |
| D | 42539 | 4296 | 10.098968% |
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 | 49204 | 42543 | 2367 | 2367 | 4.81% | 5.56% |  |
| B | 49205 | 42542 | 94 | 94 | 0.19% | 0.22% |  |
| C | 49205 | 42543 | 189 | 189 | 0.38% | 0.44% |  |
| D | 49205 | 42543 | 3894 | 3894 | 7.91% | 9.15% |  |
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 | 15 | 32 | 11173131 | 10184.11 | 4503 | 4395 | 1096.7 |
| A | 0 | 8 | 666585 | 603.81 | 4503 | 4395 | 1096.7 |
| A | 4 | 78 | 238688 | 213.64 | 4503 | 4395 | 1096.7 |
| B | 5 | 185 | 572150 | 572.11 | 4587 | 4393 | 992.4 |
| B | 10 | 247 | 269759 | 267.4 | 4587 | 4393 | 992.4 |
| B | 10 | 245 | 224384 | 221.68 | 4587 | 4393 | 992.4 |
| C | 9 | 38 | 504220 | 407.13 | 4515 | 4481 | 1227.5 |
| C | 13 | 3 | 459804 | 370.95 | 4515 | 4481 | 1227.5 |
| C | 12 | 252 | 359717 | 289.41 | 4515 | 4481 | 1227.5 |
| D | 11 | 129 | 6484494 | 5358.26 | 4286 | 4097 | 1209.4 |
| D | 15 | 94 | 6076615 | 5021.01 | 4286 | 4097 | 1209.4 |
| D | 2 | 249 | 1899470 | 1567.17 | 4286 | 4097 | 1209.4 |
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 |  |