Observation information
- date-obs: 2018-01-30
- time-obs: 12:56:23.201300000
- date-end: 2018-01-30
- time-end: 14:49:10.018000000
- obs_id: A04_174T01_9000001876
- exposure: 4380.32300591
- 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_9000001876_12662cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12662cztM0_level2_quad_clean.evt
|
| Size (bytes) | 483,586,560 | 97,787,520 |
| Size | 461.2 MB
| 93.3 MB
|
| Events in quadrant A | 2,758,035 | 678,008 |
| Events in quadrant B | 5,533,562 | 594,186 |
| Events in quadrant C | 2,878,556 | 663,080 |
| Events in quadrant D | 3,093,477 | 632,675 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11820 | 2 |
| B | 0 | 20124 | 1 |
| C | 0 | 12241 | 1 |
| D | 0 | 13040 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5617 | 42 | 0.747730% |
| B | 5617 | 1003 | 17.856507% |
| C | 5617 | 59 | 1.050383% |
| D | 5617 | 69 | 1.228414% |
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 | 6768 | 5618 | 0 | 0 | 0.00% | 0.00% |  |
| B | 6768 | 5618 | 820 | 820 | 12.12% | 14.60% |  |
| C | 6768 | 5619 | 45 | 45 | 0.66% | 0.80% |  |
| D | 6768 | 5618 | 34 | 34 | 0.50% | 0.61% |  |
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 | 12 | 189 | 19012 | 126.32 | 710 | 699 | 145.0 |
| A | 8 | 15 | 11038 | 71.32 | 710 | 699 | 145.0 |
| A | 0 | 226 | 6209 | 38.01 | 710 | 699 | 145.0 |
| B | 4 | 239 | 2199771 | 17849.12 | 643 | 630 | 123.2 |
| B | 4 | 206 | 576632 | 4675.07 | 643 | 630 | 123.2 |
| B | 11 | 51 | 120113 | 969.77 | 643 | 630 | 123.2 |
| C | 15 | 208 | 226337 | 1431.54 | 679 | 685 | 157.6 |
| C | 13 | 61 | 4926 | 26.91 | 679 | 685 | 157.6 |
| C | 8 | 222 | 3453 | 17.56 | 679 | 685 | 157.6 |
| D | 10 | 157 | 338808 | 2059.47 | 680 | 664 | 164.2 |
| D | 10 | 199 | 90738 | 548.6 | 680 | 664 | 164.2 |
| D | 1 | 52 | 32574 | 194.35 | 680 | 664 | 164.2 |
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 |  |