Observation information
- date-obs: 2018-01-18
- time-obs: 07:43:17.309600000
- date-end: 2018-01-18
- time-end: 10:12:41.318500000
- obs_id: A04_174T01_9000001850
- exposure: 4380.65257613
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001850_12481cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12481cztM0_level2_quad_clean.evt
|
| Size (bytes) | 661,680,000 | 100,440,000 |
| Size | 631.0 MB
| 95.8 MB
|
| Events in quadrant A | 5,786,228 | 608,087 |
| Events in quadrant B | 5,035,168 | 618,915 |
| Events in quadrant C | 4,226,152 | 624,143 |
| Events in quadrant D | 4,406,916 | 591,733 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22847 | 2 |
| B | 0 | 20353 | 1 |
| C | 0 | 18227 | 1 |
| D | 0 | 18867 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 174 | 0 |
| B | 0 | 174 | 0 |
| C | 0 | 174 | 0 |
| D | 0 | 174 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8629 | 578 | 6.698343% |
| B | 8629 | 655 | 7.590683% |
| C | 8629 | 318 | 3.685247% |
| D | 8629 | 377 | 4.368988% |
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 | 8965 | 8630 | 92 | 92 | 1.03% | 1.07% |  |
| B | 8965 | 8631 | 60 | 60 | 0.67% | 0.70% |  |
| C | 8965 | 8631 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8965 | 8631 | 46 | 46 | 0.51% | 0.53% |  |
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 | 0 | 23 | 1301438 | 5749.56 | 1093 | 1067 | 226.2 |
| A | 0 | 226 | 100219 | 438.4 | 1093 | 1067 | 226.2 |
| A | 12 | 189 | 90370 | 394.85 | 1093 | 1067 | 226.2 |
| B | 4 | 239 | 592826 | 2790.35 | 1092 | 1066 | 212.1 |
| B | 0 | 85 | 57202 | 264.7 | 1092 | 1066 | 212.1 |
| B | 0 | 214 | 55164 | 255.09 | 1092 | 1066 | 212.1 |
| C | 13 | 61 | 7912 | 26.85 | 1083 | 1089 | 254.1 |
| C | 12 | 4 | 2844 | 6.91 | 1083 | 1089 | 254.1 |
| C | 8 | 222 | 2673 | 6.23 | 1083 | 1089 | 254.1 |
| D | 1 | 52 | 258463 | 991.11 | 1070 | 1038 | 259.7 |
| D | 13 | 249 | 49656 | 187.18 | 1070 | 1038 | 259.7 |
| D | 2 | 234 | 28663 | 106.36 | 1070 | 1038 | 259.7 |
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 |  |