Observation information
- date-obs: 2022-01-05
- time-obs: 18:13:37.761200000
- date-end: 2022-01-05
- time-end: 19:13:38.762200000
- obs_id: T04_091T01_9000004842
- exposure: 1450.88727358
- sourceid: ngc4509
- observer: jyoti
- ra_pnt: 188.2771
- dec_pnt: 32.0909
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T04_091T01_9000004842_33921cztM0_level2.evt
| modeM0/AS1T04_091T01_9000004842_33921cztM0_level2_quad_clean.evt
|
| Size (bytes) | 283,314,240 | 28,422,720 |
| Size | 270.2 MB
| 27.1 MB
|
| Events in quadrant A | 3,409,363 | 164,019 |
| Events in quadrant B | 1,384,210 | 182,311 |
| Events in quadrant C | 1,333,981 | 183,580 |
| Events in quadrant D | 2,300,603 | 169,299 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 46 | 0 |
| B | 0 | 46 | 0 |
| C | 0 | 46 | 0 |
| D | 0 | 46 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11716 | 0 |
| B | 0 | 5500 | 0 |
| C | 0 | 5246 | 0 |
| D | 0 | 8324 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2229 | 332 | 14.894572% |
| B | 2229 | 81 | 3.633917% |
| C | 2229 | 46 | 2.063706% |
| D | 2229 | 287 | 12.875729% |
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 | 3602 | 2230 | 299 | 299 | 8.30% | 13.41% |  |
| B | 3602 | 2230 | 59 | 59 | 1.64% | 2.65% |  |
| C | 3602 | 2230 | 34 | 34 | 0.94% | 1.52% |  |
| D | 3602 | 2230 | 208 | 208 | 5.77% | 9.33% |  |
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 | 169 | 2436695 | 46885.1 | 249 | 243 | 52.0 |
| A | 10 | 83 | 6435 | 119.15 | 249 | 243 | 52.0 |
| A | 13 | 254 | 4047 | 73.2 | 249 | 243 | 52.0 |
| B | 5 | 172 | 259615 | 5169.79 | 256 | 250 | 50.2 |
| B | 0 | 219 | 27527 | 543.7 | 256 | 250 | 50.2 |
| B | 0 | 229 | 21126 | 416.11 | 256 | 250 | 50.2 |
| C | 0 | 10 | 150240 | 2516.63 | 251 | 254 | 59.6 |
| C | 15 | 214 | 96788 | 1619.76 | 251 | 254 | 59.6 |
| C | 3 | 233 | 71111 | 1188.92 | 251 | 254 | 59.6 |
| D | 8 | 195 | 517983 | 8082.34 | 242 | 235 | 64.1 |
| D | 1 | 47 | 373636 | 5829.0 | 242 | 235 | 64.1 |
| D | 12 | 235 | 271056 | 4227.67 | 242 | 235 | 64.1 |
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 |  |