Observation information
- date-obs: 2024-09-16
- time-obs: 05:04:54.982500000
- date-end: 2024-09-16
- time-end: 07:15:02.968400000
- obs_id: A13_037T01_9000006432
- exposure: 6164.92514044
- 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_9000006432_48506cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006432_48506cztM0_level2_quad_clean.evt
|
| Size (bytes) | 483,249,600 | 107,115,840 |
| Size | 460.9 MB
| 102.2 MB
|
| Events in quadrant A | 6,914,389 | 704,466 |
| Events in quadrant B | 3,271,572 | 747,486 |
| Events in quadrant C | 2,845,690 | 719,650 |
| Events in quadrant D | 4,330,768 | 599,719 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25593 | 1 |
| B | 0 | 14612 | 1 |
| C | 0 | 13778 | 1 |
| D | 0 | 18136 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6773 | 215 | 3.174369% |
| B | 6774 | 120 | 1.771479% |
| C | 6774 | 25 | 0.369058% |
| D | 6774 | 572 | 8.444051% |
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 | 7808 | 6774 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7809 | 6774 | 25 | 25 | 0.32% | 0.37% |  |
| C | 7809 | 6775 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7809 | 6774 | 535 | 535 | 6.85% | 7.90% |  |
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 | 3993900 | 26117.28 | 734 | 719 | 152.9 |
| A | 12 | 189 | 77006 | 498.95 | 734 | 719 | 152.9 |
| A | 13 | 254 | 13151 | 81.31 | 734 | 719 | 152.9 |
| B | 5 | 255 | 258215 | 1762.65 | 741 | 717 | 146.1 |
| B | 8 | 234 | 24705 | 164.2 | 741 | 717 | 146.1 |
| B | 12 | 111 | 19380 | 127.75 | 741 | 717 | 146.1 |
| C | 13 | 61 | 4945 | 24.53 | 728 | 733 | 171.7 |
| C | 14 | 254 | 4626 | 22.67 | 728 | 733 | 171.7 |
| C | 3 | 233 | 3098 | 13.77 | 728 | 733 | 171.7 |
| D | 2 | 165 | 1391838 | 8127.42 | 685 | 662 | 171.2 |
| D | 7 | 38 | 190828 | 1110.97 | 685 | 662 | 171.2 |
| D | 2 | 234 | 28883 | 164.87 | 685 | 662 | 171.2 |
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 |  |