Observation information
- date-obs: 2023-11-18
- time-obs: 02:32:39.761900000
- date-end: 2023-11-18
- time-end: 04:51:16.757400000
- obs_id: A13_037T01_9000005930
- exposure: 6333.19535434
- 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_9000005930_44012cztM0_level2.fits
| modeM0/AS1A13_037T01_9000005930_44012cztM0_level2_quad_clean.evt
|
Size (bytes) | 469,768,320 | 112,109,760 |
Size | 448.0 MB
| 106.9 MB
|
Events in quadrant A | 5,096,104 | 723,664 |
Events in quadrant B | 3,337,065 | 785,609 |
Events in quadrant C | 3,265,619 | 761,521 |
Events in quadrant D | 5,162,513 | 650,317 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 138 | 0 |
B | 0 | 138 | 0 |
C | 0 | 138 | 0 |
D | 0 | 138 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 19831 | 2 |
B | 0 | 14397 | 2 |
C | 0 | 14384 | 3 |
D | 0 | 20062 | 14 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15 | 0 |
B | 0 | 16 | 0 |
C | 0 | 16 | 0 |
D | 0 | 16 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6796 | 412 | 6.062390% |
B | 6796 | 141 | 2.074750% |
C | 6795 | 73 | 1.074319% |
D | 6792 | 517 | 7.611896% |
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 | 7806 | 6797 | 173 | 173 | 2.22% | 2.55% |  |
B | 7806 | 6797 | 5 | 5 | 0.06% | 0.07% |  |
C | 7805 | 6796 | 2 | 2 | 0.03% | 0.03% |  |
D | 7805 | 6794 | 403 | 403 | 5.16% | 5.93% |  |
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 | 1268569 | 7885.87 | 775 | 756 | 160.8 |
A | 14 | 238 | 687964 | 4274.47 | 775 | 756 | 160.8 |
A | 10 | 248 | 79386 | 489.08 | 775 | 756 | 160.8 |
B | 0 | 213 | 79436 | 500.44 | 795 | 773 | 157.2 |
B | 4 | 171 | 36366 | 226.43 | 795 | 773 | 157.2 |
B | 10 | 244 | 33873 | 210.57 | 795 | 773 | 157.2 |
C | 3 | 233 | 127027 | 695.74 | 778 | 783 | 181.5 |
C | 14 | 254 | 85785 | 468.45 | 778 | 783 | 181.5 |
C | 2 | 14 | 12489 | 64.51 | 778 | 783 | 181.5 |
D | 1 | 52 | 1181334 | 6326.92 | 746 | 722 | 186.6 |
D | 13 | 249 | 332093 | 1775.82 | 746 | 722 | 186.6 |
D | 5 | 222 | 306623 | 1639.33 | 746 | 722 | 186.6 |
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 |  |