Observation information
- date-obs: 2024-12-09
- time-obs: 14:22:49.139400000
- date-end: 2024-12-09
- time-end: 16:23:10.116500000
- obs_id: A13_037T01_9000006440
- exposure: 334.140289485
- 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_49758cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49758cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,264,167,360 | 51,154,560 |
| Size | 1.2 GB
| 48.8 MB
|
| Events in quadrant A | 19,091,199 | 188,290 |
| Events in quadrant B | 6,020,843 | 704,278 |
| Events in quadrant C | 6,265,821 | 2,321 |
| Events in quadrant D | 14,856,180 | 140,660 |
Level1 data integrity
| 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 | 61761 | 0 |
| B | 0 | 22781 | 0 |
| C | 0 | 23784 | 0 |
| D | 0 | 49130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7221 | 7219 | 99.972303% |
| B | 7222 | 639 | 8.847965% |
| C | 7222 | 7222 | 100.000000% |
| D | 7222 | 7120 | 98.587649% |
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 | 7220 | 7220 | 7083 | 7083 | 98.10% | 98.10% |  |
| B | 7222 | 7222 | 515 | 515 | 7.13% | 7.13% |  |
| C | 7221 | 7221 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7221 | 7221 | 4048 | 4048 | 56.06% | 56.06% |  |
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 | 0 | 98 | 4707030 | 67172.16 | 229 | 221 | 70.1 |
| A | 10 | 83 | 3918428 | 55917.8 | 229 | 221 | 70.1 |
| A | 12 | 50 | 2263185 | 32295.38 | 229 | 221 | 70.1 |
| B | 3 | 232 | 1197337 | 7593.39 | 732 | 708 | 157.6 |
| B | 10 | 128 | 321258 | 2034.1 | 732 | 708 | 157.6 |
| B | 3 | 233 | 308230 | 1951.43 | 732 | 708 | 157.6 |
| C | 15 | 190 | 1180391 | 88028.58 | 14 | 13 | 13.4 |
| C | 15 | 180 | 940272 | 70121.32 | 14 | 13 | 13.4 |
| C | 15 | 181 | 625218 | 46625.66 | 14 | 13 | 13.4 |
| D | 7 | 61 | 2979354 | 36766.74 | 190 | 178 | 81.0 |
| D | 15 | 168 | 2823614 | 34844.72 | 190 | 178 | 81.0 |
| D | 15 | 25 | 1796041 | 22163.19 | 190 | 178 | 81.0 |
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 |  |