Observation information
- date-obs: 2020-09-23
- time-obs: 12:28:23.220000000
- date-end: 2020-09-26
- time-end: 13:15:00.110400000
- obs_id: A09_145T01_9000003900
- exposure: 129687.357985
- sourceid: Crab
- observer: aarthy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_145T01_9000003900cztM0_level2.fits
| modeM0/AS1A09_145T01_9000003900cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,772,205,120 | 2,045,770,560 |
| Size | 1.7 GB
| 1.9 GB
|
| Events in quadrant A | 8,895,578 | 9,526,607 |
| Events in quadrant B | 10,180,612 | 13,279,783 |
| Events in quadrant C | 10,316,956 | 12,595,703 |
| Events in quadrant D | 8,769,736 | 11,084,424 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4602 | 0 |
| B | 0 | 4602 | 0 |
| C | 0 | 4602 | 0 |
| D | 0 | 4602 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 926613 | 0 |
| B | 0 | 492041 | 0 |
| C | 0 | 479582 | 0 |
| D | 0 | 653974 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 360 | 0 |
| B | 0 | 360 | 0 |
| C | 0 | 360 | 0 |
| D | 0 | 360 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 225828 | 56922 | 25.205909% |
| B | 225828 | 4152 | 1.838567% |
| C | 225828 | 3967 | 1.756647% |
| D | 225828 | 15636 | 6.923854% |
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 | 199218 | 167468 | 0 | 0 | 0.00% | 0.00% |  |
| B | 199234 | 167969 | 0 | 0 | 0.00% | 0.00% |  |
| C | 199234 | 167998 | 0 | 0 | 0.00% | 0.00% |  |
| D | 199234 | 167461 | 0 | 0 | 0.00% | 0.00% |  |
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 | 14 | 188 | 9430 | 12.9 | 2315 | 2174 | 562.3 |
| A | 14 | 204 | 7826 | 10.05 | 2315 | 2174 | 562.3 |
| A | 0 | 29 | 7401 | 9.29 | 2315 | 2174 | 562.3 |
| B | 2 | 9 | 8129 | 10.64 | 2684 | 2560 | 523.6 |
| B | 5 | 128 | 6813 | 8.12 | 2684 | 2560 | 523.6 |
| B | 2 | 8 | 6650 | 7.81 | 2684 | 2560 | 523.6 |
| C | 9 | 209 | 7024 | 6.59 | 2728 | 2561 | 677.0 |
| C | 12 | 241 | 6982 | 6.53 | 2728 | 2561 | 677.0 |
| C | 2 | 191 | 6981 | 6.53 | 2728 | 2561 | 677.0 |
| D | 4 | 246 | 6920 | 7.01 | 2499 | 2275 | 662.9 |
| D | 3 | 14 | 6435 | 6.28 | 2499 | 2275 | 662.9 |
| D | 7 | 3 | 6179 | 5.89 | 2499 | 2275 | 662.9 |
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 |  |