Observation information
- date-obs: 2018-01-16
- time-obs: 12:47:22.183600000
- date-end: 2018-01-16
- time-end: 18:11:54.201300000
- obs_id: A04_174T01_9000001850
- exposure: 11905.0998214
- 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_12456cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12456cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,695,755,520 | 250,522,560 |
| Size | 1.6 GB
| 238.9 MB
|
| Events in quadrant A | 20,547,650 | 1,570,291 |
| Events in quadrant B | 11,227,483 | 1,592,337 |
| Events in quadrant C | 8,105,717 | 1,666,400 |
| Events in quadrant D | 10,294,579 | 1,549,550 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 73543 | 4 |
| B | 0 | 44572 | 3 |
| C | 0 | 35770 | 3 |
| D | 0 | 42126 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 358 | 0 |
| B | 0 | 358 | 0 |
| C | 0 | 358 | 0 |
| D | 0 | 358 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 17526 | 3134 | 17.882004% |
| B | 17526 | 1154 | 6.584503% |
| C | 17526 | 96 | 0.547758% |
| D | 17526 | 643 | 3.668835% |
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 | 19473 | 17528 | 2399 | 2399 | 12.32% | 13.69% |  |
| B | 19473 | 17528 | 721 | 721 | 3.70% | 4.11% |  |
| C | 19473 | 17530 | 1 | 1 | 0.01% | 0.01% |  |
| D | 19473 | 17528 | 462 | 462 | 2.37% | 2.64% |  |
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 | 13 | 251 | 6326639 | 15164.97 | 2042 | 2004 | 417.1 |
| A | 0 | 23 | 5055718 | 12117.6 | 2042 | 2004 | 417.1 |
| A | 0 | 226 | 380798 | 908.26 | 2042 | 2004 | 417.1 |
| B | 4 | 239 | 2516469 | 6394.57 | 2061 | 2013 | 393.2 |
| B | 11 | 51 | 259466 | 654.73 | 2061 | 2013 | 393.2 |
| B | 3 | 64 | 123493 | 308.94 | 2061 | 2013 | 393.2 |
| C | 15 | 208 | 29172 | 56.52 | 2072 | 2092 | 479.2 |
| C | 13 | 61 | 14883 | 26.69 | 2072 | 2092 | 479.2 |
| C | 14 | 234 | 5605 | 7.33 | 2072 | 2092 | 479.2 |
| D | 1 | 52 | 2075306 | 4163.93 | 2045 | 1991 | 497.9 |
| D | 7 | 80 | 117664 | 232.31 | 2045 | 1991 | 497.9 |
| D | 13 | 104 | 88138 | 173.01 | 2045 | 1991 | 497.9 |
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 |  |