Observation information
- date-obs: 2018-01-19
- time-obs: 08:10:57.374600000
- date-end: 2018-01-19
- time-end: 10:36:51.382100000
- obs_id: A04_174T01_9000001850
- exposure: 4273.82549106
- 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_12496cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12496cztM0_level2_quad_clean.evt
|
| Size (bytes) | 711,596,160 | 96,871,680 |
| Size | 678.6 MB
| 92.4 MB
|
| Events in quadrant A | 5,727,603 | 586,680 |
| Events in quadrant B | 5,087,848 | 585,262 |
| Events in quadrant C | 4,214,934 | 604,025 |
| Events in quadrant D | 5,938,608 | 561,193 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22816 | 3 |
| B | 0 | 20464 | 2 |
| C | 0 | 18172 | 2 |
| D | 0 | 23173 | 2 |
| 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 | 176 | 0 |
| B | 0 | 176 | 0 |
| C | 0 | 176 | 0 |
| D | 0 | 176 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8599 | 580 | 6.744970% |
| B | 8599 | 771 | 8.966159% |
| C | 8599 | 283 | 3.291080% |
| D | 8599 | 656 | 7.628794% |
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 | 8755 | 8602 | 55 | 55 | 0.63% | 0.64% |  |
| B | 8755 | 8606 | 222 | 222 | 2.54% | 2.58% |  |
| C | 8755 | 8606 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8755 | 8606 | 247 | 247 | 2.82% | 2.87% |  |
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 | 8 | 15 | 536909 | 2387.59 | 1083 | 1058 | 224.4 |
| A | 1 | 162 | 289491 | 1285.17 | 1083 | 1058 | 224.4 |
| A | 12 | 189 | 196374 | 870.27 | 1083 | 1058 | 224.4 |
| B | 4 | 239 | 765214 | 3627.02 | 1081 | 1053 | 210.7 |
| B | 0 | 214 | 55168 | 256.85 | 1081 | 1053 | 210.7 |
| B | 12 | 111 | 24623 | 111.87 | 1081 | 1053 | 210.7 |
| C | 13 | 61 | 7987 | 27.56 | 1079 | 1085 | 250.4 |
| C | 14 | 234 | 6519 | 21.7 | 1079 | 1085 | 250.4 |
| C | 8 | 222 | 3602 | 10.05 | 1079 | 1085 | 250.4 |
| D | 1 | 52 | 1678371 | 6610.21 | 1039 | 1007 | 253.8 |
| D | 13 | 104 | 141511 | 553.7 | 1039 | 1007 | 253.8 |
| D | 10 | 157 | 65717 | 255.01 | 1039 | 1007 | 253.8 |
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 |  |