Observation information
- date-obs: 2018-01-16
- time-obs: 05:37:54.157000000
- date-end: 2018-01-16
- time-end: 07:42:25.164100000
- obs_id: A04_174T01_9000001850
- exposure: 2696.36603244
- 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_12450cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12450cztM0_level2_quad_clean.evt
|
| Size (bytes) | 574,243,200 | 66,101,760 |
| Size | 547.6 MB
| 63.0 MB
|
| Events in quadrant A | 5,390,064 | 407,931 |
| Events in quadrant B | 4,265,089 | 364,066 |
| Events in quadrant C | 3,067,989 | 413,402 |
| Events in quadrant D | 4,223,447 | 358,099 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20899 | 2 |
| B | 0 | 16814 | 1 |
| C | 0 | 13430 | 1 |
| D | 0 | 17024 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6556 | 88 | 1.342282% |
| B | 6556 | 551 | 8.404515% |
| C | 6556 | 11 | 0.167785% |
| D | 6556 | 471 | 7.184259% |
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 | 7472 | 6558 | 12 | 12 | 0.16% | 0.18% |  |
| B | 7472 | 6558 | 336 | 336 | 4.50% | 5.12% |  |
| C | 7472 | 6558 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7472 | 6558 | 395 | 395 | 5.29% | 6.02% |  |
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 | 1007815 | 6184.72 | 792 | 778 | 162.8 |
| A | 13 | 251 | 615578 | 3775.8 | 792 | 778 | 162.8 |
| A | 1 | 162 | 232507 | 1423.16 | 792 | 778 | 162.8 |
| B | 4 | 239 | 1126242 | 7691.92 | 762 | 746 | 146.3 |
| B | 11 | 51 | 68995 | 466.43 | 762 | 746 | 146.3 |
| B | 0 | 187 | 60624 | 409.22 | 762 | 746 | 146.3 |
| C | 15 | 208 | 33897 | 183.09 | 778 | 785 | 180.9 |
| C | 13 | 61 | 5716 | 27.27 | 778 | 785 | 180.9 |
| C | 3 | 202 | 1922 | 6.29 | 778 | 785 | 180.9 |
| D | 1 | 52 | 1176658 | 6650.21 | 738 | 720 | 176.8 |
| D | 13 | 104 | 151260 | 851.34 | 738 | 720 | 176.8 |
| D | 5 | 184 | 56098 | 313.17 | 738 | 720 | 176.8 |
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 |  |