Observation information
- date-obs: 2026-07-16
- time-obs: 10:46:15.458500000
- date-end: 2026-07-16
- time-end: 14:19:29.431100000
- obs_id: A14_045T01_9000006590
- exposure: 10925.9576694
- sourceid: NGC 4383
- observer: ujjwalkrishnan
- ra_pnt: 186.3563
- dec_pnt: 16.47013
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_045T01_9000006590_58434cztM0_level2.fits
| modeM0/AS1A14_045T01_9000006590_58434cztM0_level2_quad_clean.evt
|
| Size (bytes) | 863,487,360 | 165,663,360 |
| Size | 823.5 MB
| 158.0 MB
|
| Events in quadrant A | 5,467,684 | 1,101,619 |
| Events in quadrant B | 9,511,834 | 1,116,514 |
| Events in quadrant C | 8,749,731 | 994,300 |
| Events in quadrant D | 7,316,282 | 983,669 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 240 | 0 |
| B | 0 | 240 | 0 |
| C | 0 | 241 | 1 |
| D | 0 | 240 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25022 | 49 |
| B | 0 | 36655 | 48 |
| C | 0 | 34402 | 44 |
| D | 0 | 29939 | 52 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11851 | 188 | 1.586364% |
| B | 11851 | 985 | 8.311535% |
| C | 11851 | 922 | 7.779934% |
| D | 11852 | 343 | 2.894026% |
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 | 12792 | 11858 | 19 | 19 | 0.15% | 0.16% |  |
| B | 12791 | 11857 | 654 | 654 | 5.11% | 5.52% |  |
| C | 12789 | 11856 | 692 | 692 | 5.41% | 5.84% |  |
| D | 12791 | 11858 | 232 | 232 | 1.81% | 1.96% |  |
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 | 12 | 80 | 120417 | 361.26 | 1321 | 1286 | 329.8 |
| A | 10 | 251 | 57957 | 171.85 | 1321 | 1286 | 329.8 |
| A | 12 | 114 | 41138 | 120.85 | 1321 | 1286 | 329.8 |
| B | 5 | 172 | 3268769 | 12055.35 | 1264 | 1216 | 271.0 |
| B | 4 | 201 | 601215 | 2213.64 | 1264 | 1216 | 271.0 |
| B | 10 | 247 | 163355 | 598.2 | 1264 | 1216 | 271.0 |
| C | 15 | 147 | 2777389 | 8090.79 | 1243 | 1230 | 343.1 |
| C | 14 | 245 | 492524 | 1431.82 | 1243 | 1230 | 343.1 |
| C | 14 | 254 | 138030 | 398.69 | 1243 | 1230 | 343.1 |
| D | 11 | 129 | 563827 | 1564.34 | 1264 | 1207 | 359.7 |
| D | 8 | 240 | 403641 | 1118.95 | 1264 | 1207 | 359.7 |
| D | 5 | 32 | 164451 | 453.89 | 1264 | 1207 | 359.7 |
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 |  |