Observation information
- date-obs: 2018-07-28
- time-obs: 05:06:04.443900000
- date-end: 2018-07-28
- time-end: 08:57:42.449700000
- obs_id: T02_073T01_9000002260
- exposure: 6637.39625117
- sourceid: Cygnus X-1
- observer: mithunnps
- ra_pnt: 299.563
- dec_pnt: 35.202
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_073T01_9000002260_15307cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002260_15307cztM0_level2_quad_clean.evt
|
| Size (bytes) | 813,732,480 | 139,242,240 |
| Size | 776.0 MB
| 132.8 MB
|
| Events in quadrant A | 5,847,982 | 846,998 |
| Events in quadrant B | 5,995,533 | 855,725 |
| Events in quadrant C | 6,110,999 | 832,908 |
| Events in quadrant D | 5,831,550 | 806,196 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 256 | 0 |
| B | 0 | 256 | 0 |
| C | 0 | 256 | 0 |
| D | 0 | 256 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25786 | 3 |
| B | 0 | 25985 | 2 |
| C | 0 | 26105 | 2 |
| D | 0 | 26506 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 12663 | 128 | 1.010819% |
| B | 12663 | 156 | 1.231936% |
| C | 12663 | 108 | 0.852878% |
| D | 12663 | 137 | 1.081892% |
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 | 13899 | 12664 | 6 | 6 | 0.04% | 0.05% |  |
| B | 13899 | 12664 | 6 | 6 | 0.04% | 0.05% |  |
| C | 13899 | 12664 | 7 | 7 | 0.05% | 0.06% |  |
| D | 13899 | 12664 | 41 | 41 | 0.29% | 0.32% |  |
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 | 252 | 36220 | 114.68 | 1498 | 1463 | 303.1 |
| A | 4 | 2 | 21777 | 67.03 | 1498 | 1463 | 303.1 |
| A | 7 | 32 | 18583 | 56.49 | 1498 | 1463 | 303.1 |
| B | 10 | 16 | 44178 | 147.31 | 1499 | 1461 | 290.0 |
| B | 0 | 189 | 39939 | 132.69 | 1499 | 1461 | 290.0 |
| B | 12 | 111 | 35504 | 117.4 | 1499 | 1461 | 290.0 |
| C | 3 | 233 | 354439 | 1053.57 | 1450 | 1458 | 335.0 |
| C | 4 | 254 | 105537 | 310.65 | 1450 | 1458 | 335.0 |
| C | 13 | 61 | 10449 | 26.84 | 1450 | 1458 | 335.0 |
| D | 2 | 33 | 246912 | 687.94 | 1452 | 1406 | 356.9 |
| D | 10 | 70 | 52531 | 143.26 | 1452 | 1406 | 356.9 |
| D | 2 | 234 | 48276 | 131.34 | 1452 | 1406 | 356.9 |
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 |  |