Observation information
- date-obs: 2020-09-18
- time-obs: 18:26:16.299000000
- date-end: 2020-09-18
- time-end: 20:37:16.297500000
- obs_id: A09_044T01_9000003888
- exposure: 4338.90231307
- sourceid: 4U 1705-44
- observer: jitheshthejus
- ra_pnt: 257.227
- dec_pnt: -44.10204
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_044T01_9000003888_26904cztM0_level2.evt
| modeM0/AS1A09_044T01_9000003888_26904cztM0_level2_quad_clean.evt
|
| Size (bytes) | 595,497,600 | 93,381,120 |
| Size | 567.9 MB
| 89.1 MB
|
| Events in quadrant A | 3,358,697 | 611,052 |
| Events in quadrant B | 4,488,951 | 614,595 |
| Events in quadrant C | 3,140,802 | 603,012 |
| Events in quadrant D | 6,606,516 | 546,034 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14022 | 0 |
| B | 0 | 17647 | 0 |
| C | 0 | 13376 | 0 |
| D | 0 | 24126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6501 | 38 | 0.584525% |
| B | 6501 | 427 | 6.568220% |
| C | 6501 | 53 | 0.815259% |
| D | 6501 | 734 | 11.290571% |
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 | 7546 | 6502 | 15 | 15 | 0.20% | 0.23% |  |
| B | 7546 | 6501 | 283 | 283 | 3.75% | 4.35% |  |
| C | 7546 | 6502 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7546 | 6502 | 687 | 687 | 9.10% | 10.57% |  |
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 | 0 | 13 | 200835 | 1242.3 | 800 | 785 | 161.0 |
| A | 5 | 168 | 50673 | 309.8 | 800 | 785 | 161.0 |
| A | 12 | 189 | 21861 | 130.88 | 800 | 785 | 161.0 |
| B | 3 | 64 | 946888 | 6405.44 | 780 | 761 | 147.7 |
| B | 10 | 246 | 222155 | 1498.87 | 780 | 761 | 147.7 |
| B | 0 | 190 | 194007 | 1308.31 | 780 | 761 | 147.7 |
| C | 14 | 238 | 120413 | 664.31 | 766 | 774 | 180.1 |
| C | 8 | 128 | 10181 | 52.23 | 766 | 774 | 180.1 |
| C | 15 | 208 | 9211 | 46.85 | 766 | 774 | 180.1 |
| D | 1 | 52 | 1914445 | 10597.36 | 725 | 709 | 180.6 |
| D | 7 | 80 | 722918 | 3999.25 | 725 | 709 | 180.6 |
| D | 11 | 176 | 475416 | 2628.7 | 725 | 709 | 180.6 |
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 |  |