Observation information
- date-obs: 2023-07-13
- time-obs: 19:40:08.329300000
- date-end: 2023-07-13
- time-end: 21:50:06.320400000
- obs_id: A12_061T07_9000005752
- exposure: 4812.21597457
- sourceid: NGC1808
- observer: jyoti
- ra_pnt: 76.92641
- dec_pnt: -37.51306
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A12_061T07_9000005752_42126cztM0_level2.fits
| modeM0/AS1A12_061T07_9000005752_42126cztM0_level2_quad_clean.evt
|
Size (bytes) | 294,091,200 | 90,835,200 |
Size | 280.5 MB
| 86.6 MB
|
Events in quadrant A | 2,770,258 | 619,222 |
Events in quadrant B | 2,336,529 | 644,091 |
Events in quadrant C | 2,445,457 | 598,203 |
Events in quadrant D | 2,949,775 | 543,697 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11119 | 2 |
B | 0 | 9979 | 3 |
C | 0 | 9965 | 2 |
D | 0 | 12073 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 100 | 0 |
B | 0 | 100 | 0 |
C | 0 | 100 | 0 |
D | 0 | 100 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28 | 0 |
B | 0 | 29 | 0 |
C | 0 | 29 | 0 |
D | 0 | 29 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4929 | 15 | 0.304321% |
B | 4928 | 7 | 0.142045% |
C | 4928 | 3 | 0.060877% |
D | 4928 | 84 | 1.704545% |
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 | 6991 | 4930 | 3 | 3 | 0.04% | 0.06% |  |
B | 6990 | 4929 | 1 | 1 | 0.01% | 0.02% |  |
C | 6990 | 4929 | 0 | 0 | 0.00% | 0.00% |  |
D | 6990 | 4929 | 85 | 85 | 1.22% | 1.72% |  |
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 | 484568 | 4079.11 | 585 | 573 | 118.7 |
A | 13 | 6 | 18134 | 148.0 | 585 | 573 | 118.7 |
A | 13 | 248 | 9017 | 71.17 | 585 | 573 | 118.7 |
B | 5 | 255 | 18855 | 166.0 | 584 | 570 | 110.2 |
B | 0 | 229 | 14201 | 123.75 | 584 | 570 | 110.2 |
B | 12 | 111 | 13592 | 118.22 | 584 | 570 | 110.2 |
C | 15 | 214 | 206805 | 1551.48 | 573 | 578 | 132.9 |
C | 8 | 79 | 6321 | 43.21 | 573 | 578 | 132.9 |
C | 13 | 61 | 3785 | 24.13 | 573 | 578 | 132.9 |
D | 1 | 52 | 437716 | 3198.39 | 564 | 549 | 136.7 |
D | 13 | 249 | 165938 | 1210.02 | 564 | 549 | 136.7 |
D | 12 | 6 | 106570 | 775.67 | 564 | 549 | 136.7 |
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 |  |