Observation information
- date-obs: 2024-09-16
- time-obs: 03:20:08.982500000
- date-end: 2024-09-16
- time-end: 20:24:50.939600000
- obs_id: A13_037T01_9000006432
- exposure: 12817.910198
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_037T01_9000006432cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006432cztM0_level2_quad_clean.evt
|
| Size (bytes) | 490,939,200 | 279,469,440 |
| Size | 468.2 MB
| 266.5 MB
|
| Events in quadrant A | 2,808,630 | 1,155,879 |
| Events in quadrant B | 2,805,350 | 1,194,374 |
| Events in quadrant C | 2,893,690 | 1,142,577 |
| Events in quadrant D | 2,414,032 | 1,024,374 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 40 | 0 |
| B | 0 | 40 | 0 |
| C | 0 | 40 | 0 |
| D | 0 | 40 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 214983 | 0 |
| B | 0 | 124266 | 0 |
| C | 0 | 117571 | 0 |
| D | 0 | 157300 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1162 | 0 |
| B | 0 | 1162 | 0 |
| C | 0 | 1162 | 0 |
| D | 0 | 1162 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 57473 | 2136 | 3.716528% |
| B | 57473 | 1520 | 2.644720% |
| C | 57473 | 544 | 0.946531% |
| D | 57473 | 4578 | 7.965479% |
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 | 61482 | 57472 | 0 | 0 | 0.00% | 0.00% |  |
| B | 61483 | 57465 | 0 | 0 | 0.00% | 0.00% |  |
| C | 61483 | 57469 | 0 | 0 | 0.00% | 0.00% |  |
| D | 61483 | 57429 | 0 | 0 | 0.00% | 0.00% |  |
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 | 7 | 110 | 2293 | 8.37 | 732 | 681 | 192.5 |
| A | 15 | 236 | 2246 | 8.13 | 732 | 681 | 192.5 |
| A | 14 | 95 | 2118 | 7.46 | 732 | 681 | 192.5 |
| B | 2 | 9 | 2665 | 13.29 | 737 | 697 | 148.0 |
| B | 2 | 8 | 2109 | 9.54 | 737 | 697 | 148.0 |
| B | 3 | 17 | 2081 | 9.35 | 737 | 697 | 148.0 |
| C | 1 | 81 | 2159 | 7.13 | 765 | 706 | 203.9 |
| C | 1 | 80 | 2086 | 6.77 | 765 | 706 | 203.9 |
| C | 3 | 202 | 2066 | 6.67 | 765 | 706 | 203.9 |
| D | 4 | 12 | 1750 | 5.72 | 690 | 621 | 197.3 |
| D | 10 | 189 | 1732 | 5.63 | 690 | 621 | 197.3 |
| D | 3 | 31 | 1714 | 5.54 | 690 | 621 | 197.3 |
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 |  |