Observation information
- date-obs: 2024-05-17
- time-obs: 20:19:54.425500000
- date-end: 2024-05-18
- time-end: 05:09:42.397600000
- obs_id: A13_037T01_9000006256
- exposure: 20845.2279404
- 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_9000006256_46710cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46710cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,650,029,760 | 360,745,920 |
Size | 1.5 GB
| 344.0 MB
|
Events in quadrant A | 20,879,025 | 2,374,004 |
Events in quadrant B | 11,575,453 | 2,503,055 |
Events in quadrant C | 10,256,121 | 2,405,386 |
Events in quadrant D | 16,635,320 | 2,096,118 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 82926 | 6169 |
B | 0 | 54545 | 3823 |
C | 0 | 52626 | 5046 |
D | 0 | 70748 | 5392 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 503 | 46 |
B | 0 | 513 | 57 |
C | 0 | 503 | 45 |
D | 0 | 507 | 51 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 69 | 28 |
B | 0 | 56 | 15 |
C | 0 | 55 | 14 |
D | 0 | 62 | 21 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 22376 | 878 | 3.923847% |
B | 22456 | 515 | 2.293374% |
C | 22457 | 275 | 1.224562% |
D | 22438 | 1633 | 7.277832% |
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 | 31789 | 22534 | 114 | 114 | 0.36% | 0.51% | |
B | 31789 | 22620 | 53 | 53 | 0.17% | 0.23% | |
C | 31788 | 22611 | 116 | 116 | 0.36% | 0.51% | |
D | 31789 | 22595 | 1310 | 1310 | 4.12% | 5.80% | |
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 | 10952755 | 21602.32 | 2451 | 2400 | 506.9 |
A | 9 | 191 | 202558 | 394.86 | 2451 | 2400 | 506.9 |
A | 13 | 248 | 99064 | 190.69 | 2451 | 2400 | 506.9 |
B | 4 | 171 | 945946 | 1928.98 | 2490 | 2413 | 489.1 |
B | 0 | 190 | 174729 | 352.29 | 2490 | 2413 | 489.1 |
B | 0 | 198 | 170449 | 343.54 | 2490 | 2413 | 489.1 |
C | 12 | 2 | 390001 | 677.6 | 2448 | 2461 | 571.9 |
C | 1 | 3 | 106649 | 182.17 | 2448 | 2461 | 571.9 |
C | 3 | 233 | 103457 | 176.59 | 2448 | 2461 | 571.9 |
D | 13 | 168 | 3654974 | 6132.94 | 2375 | 2304 | 595.6 |
D | 1 | 52 | 2024130 | 3394.7 | 2375 | 2304 | 595.6 |
D | 13 | 249 | 665389 | 1113.34 | 2375 | 2304 | 595.6 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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Quadrant B |
Quadrant D |
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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 |
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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 | |