Observation information
- date-obs: 2018-07-31
- time-obs: 19:56:32.340900000
- date-end: 2018-07-31
- time-end: 22:14:25.342400000
- obs_id: A04_126T01_9000002262
- exposure: 4892.3743943
- sourceid: 4U 1735-44
- observer: anjali
- ra_pnt: 264.7429
- dec_pnt: -44.45
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_126T01_9000002262_15360cztM0_level2.evt
| modeM0/AS1A04_126T01_9000002262_15360cztM0_level2_quad_clean.evt
|
| Size (bytes) | 475,891,200 | 97,859,520 |
| Size | 453.8 MB
| 93.3 MB
|
| Events in quadrant A | 3,180,684 | 630,125 |
| Events in quadrant B | 3,779,057 | 632,487 |
| Events in quadrant C | 3,297,073 | 628,994 |
| Events in quadrant D | 3,691,885 | 596,127 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14151 | 3 |
| B | 0 | 15728 | 2 |
| C | 0 | 14355 | 2 |
| D | 0 | 15536 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6830 | 16 | 0.234261% |
| B | 6830 | 100 | 1.464129% |
| C | 6830 | 9 | 0.131772% |
| D | 6830 | 97 | 1.420205% |
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 | 7631 | 6832 | 3 | 3 | 0.04% | 0.04% |  |
| B | 7631 | 6832 | 72 | 72 | 0.94% | 1.05% |  |
| C | 7631 | 6832 | 5 | 5 | 0.07% | 0.07% |  |
| D | 7631 | 6832 | 82 | 82 | 1.07% | 1.20% |  |
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 | 15 | 239 | 54004 | 328.27 | 802 | 786 | 162.1 |
| A | 9 | 143 | 38923 | 235.24 | 802 | 786 | 162.1 |
| A | 13 | 248 | 7836 | 43.49 | 802 | 786 | 162.1 |
| B | 10 | 16 | 395765 | 2584.79 | 803 | 784 | 152.8 |
| B | 4 | 173 | 64673 | 418.09 | 803 | 784 | 152.8 |
| B | 0 | 190 | 46802 | 301.15 | 803 | 784 | 152.8 |
| C | 3 | 233 | 268860 | 1496.79 | 773 | 779 | 179.1 |
| C | 13 | 61 | 5517 | 26.45 | 773 | 779 | 179.1 |
| C | 4 | 238 | 5414 | 25.88 | 773 | 779 | 179.1 |
| D | 13 | 122 | 321016 | 1710.48 | 767 | 743 | 187.2 |
| D | 7 | 38 | 261770 | 1394.07 | 767 | 743 | 187.2 |
| D | 2 | 33 | 73370 | 387.88 | 767 | 743 | 187.2 |
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 |  |