Observation information
- date-obs: 2025-12-04
- time-obs: 10:55:49.763100000
- date-end: 2025-12-04
- time-end: 13:10:51.744300000
- obs_id: A14_025T01_9000006530
- exposure: 7661.2312426
- 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_55103cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55103cztM0_level2_quad_clean.evt
|
| Size (bytes) | 470,105,280 | 115,171,200 |
| Size | 448.3 MB
| 109.8 MB
|
| Events in quadrant A | 3,686,843 | 750,844 |
| Events in quadrant B | 3,599,361 | 814,122 |
| Events in quadrant C | 4,001,002 | 713,823 |
| Events in quadrant D | 5,484,540 | 645,331 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17143 | 3 |
| B | 0 | 16778 | 0 |
| C | 0 | 17999 | 3 |
| D | 0 | 22064 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 162 | 0 |
| B | 0 | 162 | 0 |
| C | 0 | 162 | 0 |
| D | 0 | 162 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8100 | 51 | 0.629630% |
| B | 8103 | 15 | 0.185117% |
| C | 8101 | 58 | 0.715961% |
| D | 8102 | 451 | 5.566527% |
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 | 8102 | 8101 | 43 | 43 | 0.53% | 0.53% |  |
| B | 8103 | 8103 | 7 | 7 | 0.09% | 0.09% |  |
| C | 8103 | 8102 | 46 | 46 | 0.57% | 0.57% |  |
| D | 8103 | 8103 | 383 | 383 | 4.73% | 4.73% |  |
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 | 222152 | 1033.25 | 867 | 845 | 214.2 |
| A | 7 | 14 | 73911 | 341.13 | 867 | 845 | 214.2 |
| A | 4 | 3 | 29834 | 135.35 | 867 | 845 | 214.2 |
| B | 5 | 185 | 55717 | 297.81 | 852 | 819 | 184.3 |
| B | 10 | 245 | 41829 | 222.47 | 852 | 819 | 184.3 |
| B | 5 | 172 | 33269 | 176.04 | 852 | 819 | 184.3 |
| C | 13 | 3 | 373743 | 1645.0 | 837 | 834 | 226.7 |
| C | 9 | 38 | 132755 | 581.94 | 837 | 834 | 226.7 |
| C | 6 | 223 | 97653 | 427.09 | 837 | 834 | 226.7 |
| D | 6 | 239 | 1221246 | 5312.59 | 819 | 786 | 229.7 |
| D | 12 | 6 | 178419 | 773.23 | 819 | 786 | 229.7 |
| D | 10 | 181 | 165010 | 714.86 | 819 | 786 | 229.7 |
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 |  |