Observation information
- date-obs: 2024-12-16
- time-obs: 13:06:04.243900000
- date-end: 2024-12-16
- time-end: 18:33:57.166400000
- obs_id: A13_037T01_9000006440
- exposure: 49.9021300673
- 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_9000006440_49863cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49863cztM0_level2_quad_clean.evt
|
| Size (bytes) | 3,080,911,680 | 118,595,520 |
| Size | 2.9 GB
| 113.1 MB
|
| Events in quadrant A | 37,855,483 | 472,023 |
| Events in quadrant B | 10,567,284 | 1,821,795 |
| Events in quadrant C | 29,804,762 | 5,218 |
| Events in quadrant D | 34,383,126 | 13,812 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 374 | 0 |
| B | 0 | 374 | 0 |
| C | 0 | 374 | 0 |
| D | 0 | 374 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 125215 | 3 |
| B | 0 | 44298 | 3 |
| C | 0 | 101490 | 3 |
| D | 0 | 114999 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18528 | 13950 | 75.291451% |
| B | 18529 | 574 | 3.097847% |
| C | 18529 | 18491 | 99.794916% |
| D | 18529 | 18409 | 99.352367% |
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 | 19672 | 18527 | 11454 | 11454 | 58.22% | 61.82% |  |
| B | 19674 | 18532 | 273 | 273 | 1.39% | 1.47% |  |
| C | 19673 | 18528 | 4648 | 4648 | 23.63% | 25.09% |  |
| D | 19673 | 18529 | 5532 | 5532 | 28.12% | 29.86% |  |
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 | 4 | 4 | 19748348 | 64473.2 | 1129 | 1095 | 306.3 |
| A | 0 | 98 | 5705128 | 18623.21 | 1129 | 1095 | 306.3 |
| A | 6 | 35 | 1995631 | 6512.0 | 1129 | 1095 | 306.3 |
| B | 4 | 206 | 1035699 | 2461.12 | 1972 | 1904 | 420.1 |
| B | 4 | 171 | 370421 | 877.31 | 1972 | 1904 | 420.1 |
| B | 4 | 216 | 286899 | 678.48 | 1972 | 1904 | 420.1 |
| C | 4 | 111 | 6700632 | 75398.77 | 163 | 153 | 88.9 |
| C | 15 | 236 | 5175604 | 58238.02 | 163 | 153 | 88.9 |
| C | 15 | 230 | 3698673 | 41618.49 | 163 | 153 | 88.9 |
| D | 7 | 61 | 12777831 | 95211.58 | 267 | 247 | 134.2 |
| D | 8 | 129 | 11603331 | 86459.85 | 267 | 247 | 134.2 |
| D | 15 | 185 | 1701426 | 12676.26 | 267 | 247 | 134.2 |
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 |  |