Observation information
- date-obs: 2021-12-28
- time-obs: 17:03:45.899900000
- date-end: 2021-12-28
- time-end: 19:22:22.898900000
- obs_id: T04_091T01_9000004822
- exposure: 3543.01573005
- 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_9000004822_33802cztM0_level2.evt
| modeM0/AS1T04_091T01_9000004822_33802cztM0_level2_quad_clean.evt
|
| Size (bytes) | 549,515,520 | 74,102,400 |
| Size | 524.1 MB
| 70.7 MB
|
| Events in quadrant A | 3,894,411 | 469,252 |
| Events in quadrant B | 3,296,515 | 479,708 |
| Events in quadrant C | 3,252,038 | 482,303 |
| Events in quadrant D | 5,852,373 | 453,237 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 106 | 0 |
| B | 0 | 106 | 0 |
| C | 0 | 106 | 0 |
| D | 0 | 106 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14993 | 3 |
| B | 0 | 13036 | 2 |
| C | 0 | 12747 | 2 |
| D | 0 | 21065 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 31 | 0 |
| B | 0 | 31 | 0 |
| C | 0 | 31 | 0 |
| D | 0 | 32 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5123 | 602 | 11.750927% |
| B | 5123 | 189 | 3.689245% |
| C | 5123 | 143 | 2.791333% |
| D | 5123 | 386 | 7.534648% |
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 | 7126 | 5124 | 409 | 409 | 5.74% | 7.98% |  |
| B | 7126 | 5124 | 115 | 115 | 1.61% | 2.24% |  |
| C | 7126 | 5124 | 107 | 107 | 1.50% | 2.09% |  |
| D | 7126 | 5124 | 378 | 378 | 5.30% | 7.38% |  |
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 | 237 | 1625010 | 13973.07 | 579 | 570 | 116.3 |
| A | 13 | 6 | 12765 | 104.9 | 579 | 570 | 116.3 |
| A | 10 | 83 | 10243 | 83.2 | 579 | 570 | 116.3 |
| B | 5 | 172 | 554121 | 4784.8 | 607 | 592 | 115.7 |
| B | 4 | 251 | 160793 | 1384.81 | 607 | 592 | 115.7 |
| B | 0 | 190 | 53110 | 453.97 | 607 | 592 | 115.7 |
| C | 9 | 187 | 284182 | 2043.02 | 602 | 608 | 138.8 |
| C | 15 | 214 | 222950 | 1601.87 | 602 | 608 | 138.8 |
| C | 0 | 10 | 142011 | 1018.74 | 602 | 608 | 138.8 |
| D | 12 | 235 | 1528664 | 10366.81 | 593 | 576 | 147.4 |
| D | 8 | 195 | 1395529 | 9463.6 | 593 | 576 | 147.4 |
| D | 12 | 233 | 207426 | 1403.31 | 593 | 576 | 147.4 |
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 |  |