Observation information
- date-obs: 2018-02-01
- time-obs: 04:39:55.998000000
- date-end: 2018-02-01
- time-end: 08:41:39.994800000
- obs_id: A04_174T01_9000001876
- exposure: 6870.34857784
- 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_12687cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12687cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,006,292,160 | 153,840,960 |
| Size | 959.7 MB
| 146.7 MB
|
| Events in quadrant A | 6,151,674 | 982,139 |
| Events in quadrant B | 9,899,047 | 866,944 |
| Events in quadrant C | 6,142,638 | 985,619 |
| Events in quadrant D | 7,405,202 | 927,863 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26613 | 4 |
| B | 0 | 37666 | 3 |
| C | 0 | 26886 | 3 |
| D | 0 | 30884 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 262 | 0 |
| B | 0 | 262 | 0 |
| C | 0 | 262 | 0 |
| D | 0 | 262 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 12969 | 150 | 1.156604% |
| B | 12969 | 1527 | 11.774231% |
| C | 12969 | 119 | 0.917573% |
| D | 12969 | 423 | 3.261624% |
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 | 14198 | 12969 | 1 | 1 | 0.01% | 0.01% |  |
| B | 14199 | 12969 | 1150 | 1150 | 8.10% | 8.87% |  |
| C | 14198 | 12968 | 14 | 14 | 0.10% | 0.11% |  |
| D | 14198 | 12968 | 305 | 305 | 2.15% | 2.35% |  |
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 | 90807 | 280.39 | 1569 | 1535 | 318.4 |
| A | 8 | 15 | 16525 | 47.08 | 1569 | 1535 | 318.4 |
| A | 0 | 226 | 13996 | 39.14 | 1569 | 1535 | 318.4 |
| B | 4 | 239 | 3788031 | 13355.76 | 1479 | 1444 | 283.5 |
| B | 11 | 51 | 159878 | 558.82 | 1479 | 1444 | 283.5 |
| B | 0 | 214 | 38002 | 128.94 | 1479 | 1444 | 283.5 |
| C | 15 | 208 | 157131 | 438.73 | 1530 | 1545 | 354.6 |
| C | 14 | 234 | 18956 | 49.1 | 1530 | 1545 | 354.6 |
| C | 13 | 61 | 11248 | 27.36 | 1530 | 1545 | 354.6 |
| D | 1 | 52 | 1434203 | 4035.28 | 1493 | 1462 | 355.1 |
| D | 10 | 199 | 124313 | 346.01 | 1493 | 1462 | 355.1 |
| D | 10 | 157 | 54430 | 149.18 | 1493 | 1462 | 355.1 |
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 |  |