Observation information
- date-obs: 2024-08-23
- time-obs: 16:14:02.768800000
- date-end: 2024-08-23
- time-end: 18:27:47.758400000
- obs_id: C09_009T01_9000006406
- exposure: 507.683970094
- sourceid: Crab
- observer: arrao
- ra_pnt: 83.63321
- dec_pnt: 22.01446
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C09_009T01_9000006406_48157cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48157cztM0_level2_quad_clean.evt
|
| Size (bytes) | 451,108,800 | 94,599,360 |
| Size | 430.2 MB
| 90.2 MB
|
| Events in quadrant A | 7,912,357 | 815,591 |
| Events in quadrant B | 1,232,203 | 48,576 |
| Events in quadrant C | 3,379,655 | 805,109 |
| Events in quadrant D | 3,653,175 | 730,467 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28131 | 2 |
| B | 0 | 7386 | 2 |
| C | 0 | 14299 | 2 |
| D | 0 | 15210 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6611 | 503 | 7.608531% |
| B | 6611 | 6611 | 100.000000% |
| C | 6611 | 120 | 1.815157% |
| D | 6610 | 134 | 2.027231% |
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 | 7766 | 6612 | 108 | 108 | 1.39% | 1.63% |  |
| B | 7765 | 6594 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7766 | 6612 | 27 | 27 | 0.35% | 0.41% |  |
| D | 7765 | 6611 | 27 | 27 | 0.35% | 0.41% |  |
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 | 10 | 83 | 4679245 | 28013.37 | 806 | 792 | 167.0 |
| A | 0 | 243 | 40505 | 237.79 | 806 | 792 | 167.0 |
| A | 13 | 248 | 35598 | 208.41 | 806 | 792 | 167.0 |
| B | 2 | 177 | 906704 | 74109.49 | 50 | 49 | 12.2 |
| B | 12 | 18 | 61403 | 5015.04 | 50 | 49 | 12.2 |
| B | 4 | 171 | 18145 | 1479.16 | 50 | 49 | 12.2 |
| C | 12 | 2 | 137688 | 720.6 | 806 | 815 | 189.9 |
| C | 14 | 254 | 79852 | 416.11 | 806 | 815 | 189.9 |
| C | 12 | 250 | 8228 | 39.03 | 806 | 815 | 189.9 |
| D | 7 | 67 | 192705 | 943.32 | 808 | 786 | 203.5 |
| D | 12 | 233 | 78823 | 383.57 | 808 | 786 | 203.5 |
| D | 2 | 165 | 63637 | 308.93 | 808 | 786 | 203.5 |
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 |  |