Observation information
- date-obs: 2018-01-19
- time-obs: 19:06:30.405700000
- date-end: 2018-01-19
- time-end: 21:02:46.410100000
- obs_id: A04_174T01_9000001850
- exposure: 3532.88590193
- 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_12503cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12503cztM0_level2_quad_clean.evt
|
| Size (bytes) | 452,496,960 | 84,211,200 |
| Size | 431.5 MB
| 80.3 MB
|
| Events in quadrant A | 3,420,752 | 543,679 |
| Events in quadrant B | 3,931,780 | 548,632 |
| Events in quadrant C | 2,789,062 | 542,240 |
| Events in quadrant D | 3,169,740 | 511,288 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14057 | 2 |
| B | 0 | 15493 | 1 |
| C | 0 | 12053 | 1 |
| D | 0 | 13294 | 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 | 118 | 0 |
| B | 0 | 118 | 0 |
| C | 0 | 118 | 0 |
| D | 0 | 118 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5781 | 95 | 1.643314% |
| B | 5781 | 223 | 3.857464% |
| C | 5781 | 48 | 0.830306% |
| D | 5781 | 69 | 1.193565% |
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 | 6977 | 5782 | 9 | 9 | 0.13% | 0.16% |  |
| B | 6977 | 5783 | 69 | 69 | 0.99% | 1.19% |  |
| C | 6977 | 5783 | 5 | 5 | 0.07% | 0.09% |  |
| D | 6977 | 5783 | 22 | 22 | 0.32% | 0.38% |  |
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 | 1 | 162 | 206102 | 1411.89 | 715 | 704 | 145.5 |
| A | 1 | 178 | 124043 | 847.82 | 715 | 704 | 145.5 |
| A | 1 | 161 | 105602 | 721.06 | 715 | 704 | 145.5 |
| B | 4 | 239 | 696741 | 5158.82 | 712 | 698 | 134.9 |
| B | 3 | 64 | 396739 | 2935.31 | 712 | 698 | 134.9 |
| B | 11 | 51 | 17525 | 124.72 | 712 | 698 | 134.9 |
| C | 7 | 238 | 37917 | 229.39 | 698 | 704 | 162.2 |
| C | 14 | 234 | 18093 | 107.19 | 698 | 704 | 162.2 |
| C | 14 | 67 | 6965 | 38.59 | 698 | 704 | 162.2 |
| D | 13 | 104 | 185382 | 1100.69 | 694 | 676 | 167.8 |
| D | 7 | 80 | 141908 | 841.62 | 694 | 676 | 167.8 |
| D | 1 | 52 | 115663 | 685.22 | 694 | 676 | 167.8 |
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 |  |