Observation information
- date-obs: 2024-08-17
- time-obs: 19:32:50.442100000
- date-end: 2024-08-17
- time-end: 21:31:17.431100000
- obs_id: A13_024T01_9000006394
- exposure: 455.219895005
- sourceid: NGC 991
- observer: amrutha
- ra_pnt: 38.88617
- dec_pnt: -7.154436
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_024T01_9000006394_48070cztM0_level2.fits
| modeM0/AS1A13_024T01_9000006394_48070cztM0_level2_quad_clean.evt
|
Size (bytes) | 381,047,040 | 80,026,560 |
Size | 363.4 MB
| 76.3 MB
|
Events in quadrant A | 6,543,997 | 673,017 |
Events in quadrant B | 998,247 | 40,736 |
Events in quadrant C | 2,734,615 | 675,500 |
Events in quadrant D | 3,360,663 | 617,357 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 120 | 0 |
B | 0 | 120 | 0 |
C | 0 | 120 | 0 |
D | 0 | 120 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23197 | 2 |
B | 0 | 6188 | 2 |
C | 0 | 12262 | 2 |
D | 0 | 14102 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5921 | 525 | 8.866745% |
B | 5922 | 5922 | 100.000000% |
C | 5922 | 32 | 0.540358% |
D | 5922 | 136 | 2.296521% |
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 | 7107 | 5921 | 191 | 191 | 2.69% | 3.23% | |
B | 7107 | 5921 | 0 | 0 | 0.00% | 0.00% | |
C | 7108 | 5923 | 4 | 4 | 0.06% | 0.07% | |
D | 7108 | 5923 | 57 | 57 | 0.80% | 0.96% | |
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 | 3594038 | 25645.87 | 675 | 660 | 140.1 |
A | 0 | 31 | 247913 | 1764.64 | 675 | 660 | 140.1 |
A | 13 | 248 | 71747 | 507.35 | 675 | 660 | 140.1 |
B | 2 | 177 | 821111 | 77979.01 | 42 | 41 | 10.5 |
B | 5 | 32 | 3082 | 288.81 | 42 | 41 | 10.5 |
B | 5 | 255 | 2679 | 250.54 | 42 | 41 | 10.5 |
C | 12 | 2 | 18652 | 110.19 | 689 | 696 | 163.0 |
C | 1 | 3 | 13390 | 77.9 | 689 | 696 | 163.0 |
C | 14 | 254 | 11015 | 63.32 | 689 | 696 | 163.0 |
D | 2 | 165 | 298565 | 1701.09 | 685 | 665 | 175.1 |
D | 2 | 249 | 191765 | 1091.23 | 685 | 665 | 175.1 |
D | 11 | 224 | 111977 | 635.62 | 685 | 665 | 175.1 |
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 |
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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 |
|
|
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 | |