Observation information
- date-obs: 2022-05-22
- time-obs: 18:31:15.620100000
- date-end: 2022-05-22
- time-end: 22:15:09.614500000
- obs_id: A11_080T01_9000005146
- exposure: 7931.45429955
- sourceid: Cygnus X-1
- observer: ajayratheesh
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_080T01_9000005146_35950cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35950cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,385,709,120 | 172,249,920 |
| Size | 1.3 GB
| 164.3 MB
|
| Events in quadrant A | 5,236,848 | 1,232,814 |
| Events in quadrant B | 22,457,003 | 910,099 |
| Events in quadrant C | 6,456,114 | 1,193,389 |
| Events in quadrant D | 7,093,792 | 1,135,755 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27 | 0 |
| B | 0 | 27 | 0 |
| C | 0 | 27 | 0 |
| D | 0 | 27 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 218 | 0 |
| B | 0 | 218 | 0 |
| C | 0 | 218 | 0 |
| D | 0 | 218 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22221 | 3 |
| B | 0 | 74070 | 2 |
| C | 0 | 25492 | 2 |
| D | 0 | 28235 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 10720 | 13 | 0.121269% |
| B | 10720 | 8171 | 76.222015% |
| C | 10720 | 530 | 4.944030% |
| D | 10720 | 426 | 3.973881% |
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 | 13434 | 10722 | 1 | 1 | 0.01% | 0.01% |  |
| B | 13434 | 10722 | 7405 | 7405 | 55.12% | 69.06% |  |
| C | 13434 | 10722 | 417 | 417 | 3.10% | 3.89% |  |
| D | 13434 | 10722 | 322 | 322 | 2.40% | 3.00% |  |
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 | 10 | 83 | 257729 | 987.34 | 1274 | 1252 | 259.8 |
| A | 15 | 169 | 26175 | 95.94 | 1274 | 1252 | 259.8 |
| A | 13 | 6 | 20089 | 72.51 | 1274 | 1252 | 259.8 |
| B | 5 | 14 | 5707618 | 30961.87 | 955 | 937 | 184.3 |
| B | 5 | 31 | 5655099 | 30676.92 | 955 | 937 | 184.3 |
| B | 5 | 15 | 5644638 | 30620.17 | 955 | 937 | 184.3 |
| C | 9 | 187 | 998358 | 3519.67 | 1202 | 1215 | 283.3 |
| C | 15 | 214 | 432614 | 1522.73 | 1202 | 1215 | 283.3 |
| C | 0 | 10 | 203158 | 712.81 | 1202 | 1215 | 283.3 |
| D | 1 | 52 | 579948 | 1949.35 | 1214 | 1187 | 296.9 |
| D | 10 | 118 | 380722 | 1278.33 | 1214 | 1187 | 296.9 |
| D | 12 | 6 | 317227 | 1064.47 | 1214 | 1187 | 296.9 |
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 |  |