Observation information
- date-obs: 2018-02-28
- time-obs: 23:09:03.642600000
- date-end: 2018-03-01
- time-end: 00:21:29.641400000
- obs_id: C03_023T01_9000001930
- exposure: 1618.69289971
- sourceid: Crab_SSM1
- observer: ramadevi
- ra_pnt: 216.8708
- dec_pnt: -12.5862
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C03_023T01_9000001930_13097cztM0_level2.evt
| modeM0/AS1C03_023T01_9000001930_13097cztM0_level2_quad_clean.evt
|
| Size (bytes) | 283,014,720 | 38,649,600 |
| Size | 269.9 MB
| 36.9 MB
|
| Events in quadrant A | 2,224,592 | 228,396 |
| Events in quadrant B | 2,537,959 | 246,787 |
| Events in quadrant C | 1,565,691 | 245,013 |
| Events in quadrant D | 2,028,673 | 226,628 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8483 | 2 |
| B | 0 | 9657 | 1 |
| C | 0 | 6521 | 1 |
| D | 0 | 8101 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 64 | 0 |
| B | 0 | 64 | 0 |
| C | 0 | 64 | 0 |
| D | 0 | 64 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3136 | 224 | 7.142857% |
| B | 3136 | 174 | 5.548469% |
| C | 3136 | 12 | 0.382653% |
| D | 3136 | 22 | 0.701531% |
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 | 4347 | 3138 | 164 | 164 | 3.77% | 5.23% |  |
| B | 4347 | 3138 | 36 | 36 | 0.83% | 1.15% |  |
| C | 4347 | 3138 | 0 | 0 | 0.00% | 0.00% |  |
| D | 4347 | 3138 | 11 | 11 | 0.25% | 0.35% |  |
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 | 223 | 451205 | 5467.05 | 401 | 392 | 82.5 |
| A | 15 | 239 | 160213 | 1938.16 | 401 | 392 | 82.5 |
| A | 12 | 189 | 46629 | 560.72 | 401 | 392 | 82.5 |
| B | 0 | 85 | 876511 | 11134.36 | 407 | 398 | 78.7 |
| B | 3 | 64 | 30305 | 380.08 | 407 | 398 | 78.7 |
| B | 0 | 214 | 14591 | 180.38 | 407 | 398 | 78.7 |
| C | 13 | 61 | 2995 | 27.54 | 401 | 402 | 94.2 |
| C | 3 | 248 | 1242 | 8.92 | 401 | 402 | 94.2 |
| C | 3 | 202 | 945 | 5.77 | 401 | 402 | 94.2 |
| D | 10 | 157 | 400653 | 4177.38 | 395 | 384 | 95.8 |
| D | 12 | 110 | 56906 | 589.89 | 395 | 384 | 95.8 |
| D | 1 | 52 | 39981 | 413.25 | 395 | 384 | 95.8 |
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 |  |