Observation information
- date-obs: 2023-11-25
- time-obs: 15:40:12.727600000
- date-end: 2023-11-25
- time-end: 17:44:21.726900000
- obs_id: A13_012T02_9000005950
- exposure: 4115.58999044
- sourceid: NGC4725
- observer: jyoti
- ra_pnt: 192.6107
- dec_pnt: 25.50081
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_012T02_9000005950_44124cztM0_level2.fits
| modeM0/AS1A13_012T02_9000005950_44124cztM0_level2_quad_clean.evt
|
Size (bytes) | 605,810,880 | 98,375,040 |
Size | 577.7 MB
| 93.8 MB
|
Events in quadrant A | 8,845,924 | 473,894 |
Events in quadrant B | 3,198,297 | 761,813 |
Events in quadrant C | 3,361,750 | 719,813 |
Events in quadrant D | 6,529,266 | 582,692 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30856 | 5 |
B | 0 | 13671 | 1 |
C | 0 | 14164 | 1 |
D | 0 | 23762 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6308 | 2327 | 36.889664% |
B | 6309 | 73 | 1.157077% |
C | 6309 | 134 | 2.123950% |
D | 6309 | 939 | 14.883500% |
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 | 7448 | 6308 | 1637 | 1637 | 21.98% | 25.95% |  |
B | 7449 | 6310 | 8 | 8 | 0.11% | 0.13% |  |
C | 7449 | 6309 | 63 | 63 | 0.85% | 1.00% |  |
D | 7449 | 6310 | 787 | 787 | 10.57% | 12.47% |  |
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 | 15 | 223 | 4309183 | 33917.74 | 611 | 600 | 127.0 |
A | 10 | 83 | 1055561 | 8304.79 | 611 | 600 | 127.0 |
A | 14 | 238 | 762770 | 5999.9 | 611 | 600 | 127.0 |
B | 5 | 172 | 62845 | 420.97 | 754 | 731 | 147.6 |
B | 4 | 173 | 57099 | 382.02 | 754 | 731 | 147.6 |
B | 5 | 235 | 47040 | 313.85 | 754 | 731 | 147.6 |
C | 14 | 254 | 350462 | 2009.36 | 740 | 744 | 174.0 |
C | 3 | 233 | 91628 | 522.19 | 740 | 744 | 174.0 |
C | 8 | 13 | 12205 | 65.85 | 740 | 744 | 174.0 |
D | 5 | 235 | 1683651 | 9437.31 | 707 | 687 | 178.3 |
D | 1 | 52 | 749760 | 4200.47 | 707 | 687 | 178.3 |
D | 12 | 233 | 692550 | 3879.66 | 707 | 687 | 178.3 |
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 |  |