Observation information
- date-obs: 2021-08-29
- time-obs: 16:29:22.285000000
- date-end: 2021-08-29
- time-end: 18:31:11.031600000
- obs_id: A10_109T01_9000004678
- exposure: 4778.18243566
- sourceid: Cygnus X-1
- observer: tanmoy
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_109T01_9000004678_32010cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004678_32010cztM0_level2_quad_clean.evt
|
| Size (bytes) | 768,254,400 | 104,751,360 |
| Size | 732.7 MB
| 99.9 MB
|
| Events in quadrant A | 3,433,796 | 717,839 |
| Events in quadrant B | 7,205,373 | 687,872 |
| Events in quadrant C | 6,224,932 | 636,217 |
| Events in quadrant D | 5,928,062 | 639,902 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14659 | 1 |
| B | 0 | 26311 | 1 |
| C | 0 | 23366 | 1 |
| D | 0 | 22344 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7029 | 121 | 1.721440% |
| B | 7030 | 679 | 9.658606% |
| C | 7030 | 922 | 13.115220% |
| D | 7029 | 483 | 6.871532% |
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 | 7309 | 7029 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7309 | 7029 | 296 | 296 | 4.05% | 4.21% |  |
| C | 7310 | 7030 | 389 | 389 | 5.32% | 5.53% |  |
| D | 7309 | 7029 | 289 | 289 | 3.95% | 4.11% |  |
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 | 254 | 13110 | 67.93 | 887 | 870 | 180.2 |
| A | 13 | 6 | 11073 | 56.62 | 887 | 870 | 180.2 |
| A | 3 | 137 | 8840 | 44.23 | 887 | 870 | 180.2 |
| B | 6 | 159 | 1889901 | 11552.36 | 842 | 823 | 163.5 |
| B | 12 | 18 | 1165906 | 7124.88 | 842 | 823 | 163.5 |
| B | 10 | 245 | 656377 | 4008.94 | 842 | 823 | 163.5 |
| C | 3 | 233 | 2564309 | 13239.99 | 821 | 828 | 193.6 |
| C | 0 | 10 | 192750 | 991.25 | 821 | 828 | 193.6 |
| C | 14 | 238 | 165995 | 853.06 | 821 | 828 | 193.6 |
| D | 8 | 195 | 1690664 | 8300.12 | 843 | 821 | 203.6 |
| D | 13 | 249 | 580739 | 2848.42 | 843 | 821 | 203.6 |
| D | 2 | 250 | 364859 | 1788.07 | 843 | 821 | 203.6 |
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 |  |