Observation information
- date-obs: 2023-08-13
- time-obs: 23:38:28.463700000
- date-end: 2023-08-14
- time-end: 02:02:17.457300000
- obs_id: A12_061T07_9000005818
- exposure: 5129.46052104
- 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_9000005818_42588cztM0_level2.fits
| modeM0/AS1A12_061T07_9000005818_42588cztM0_level2_quad_clean.evt
|
Size (bytes) | 295,600,320 | 91,681,920 |
Size | 281.9 MB
| 87.4 MB
|
Events in quadrant A | 2,841,592 | 613,839 |
Events in quadrant B | 2,414,022 | 632,151 |
Events in quadrant C | 2,567,858 | 608,627 |
Events in quadrant D | 2,710,096 | 554,462 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11584 | 2 |
B | 0 | 10698 | 2 |
C | 0 | 10745 | 2 |
D | 0 | 11734 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 108 | 0 |
B | 0 | 108 | 0 |
C | 0 | 108 | 0 |
D | 0 | 108 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 33 | 0 |
B | 0 | 34 | 0 |
C | 0 | 34 | 0 |
D | 0 | 34 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5240 | 14 | 0.267176% |
B | 5240 | 9 | 0.171756% |
C | 5240 | 9 | 0.171756% |
D | 5240 | 33 | 0.629771% |
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 | 7092 | 5241 | 5 | 5 | 0.07% | 0.10% |  |
B | 7092 | 5241 | 1 | 1 | 0.01% | 0.02% |  |
C | 7092 | 5241 | 5 | 5 | 0.07% | 0.10% |  |
D | 7092 | 5241 | 28 | 28 | 0.39% | 0.53% |  |
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 | 529496 | 4381.89 | 590 | 580 | 120.7 |
A | 7 | 3 | 16579 | 132.55 | 590 | 580 | 120.7 |
A | 3 | 137 | 6523 | 49.24 | 590 | 580 | 120.7 |
B | 0 | 245 | 48808 | 425.93 | 589 | 574 | 113.2 |
B | 12 | 111 | 14085 | 119.31 | 589 | 574 | 113.2 |
B | 5 | 255 | 13611 | 115.12 | 589 | 574 | 113.2 |
C | 15 | 214 | 219494 | 1606.76 | 588 | 593 | 136.2 |
C | 14 | 254 | 22309 | 159.4 | 588 | 593 | 136.2 |
C | 5 | 250 | 14997 | 105.73 | 588 | 593 | 136.2 |
D | 12 | 6 | 146376 | 1029.7 | 584 | 569 | 141.6 |
D | 1 | 52 | 88635 | 621.93 | 584 | 569 | 141.6 |
D | 2 | 16 | 79633 | 558.35 | 584 | 569 | 141.6 |
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 |  |