Observation information
- date-obs: 2023-01-06
- time-obs: 04:51:55.680900000
- date-end: 2023-01-06
- time-end: 07:07:43.680300000
- obs_id: A12_061T07_9000005468
- exposure: 4651.2854051
- 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_9000005468_39332cztM0_level2.fits
| modeM0/AS1A12_061T07_9000005468_39332cztM0_level2_quad_clean.evt
|
Size (bytes) | 332,147,520 | 90,000,000 |
Size | 316.8 MB
| 85.8 MB
|
Events in quadrant A | 2,668,507 | 607,822 |
Events in quadrant B | 2,378,252 | 634,148 |
Events in quadrant C | 2,602,257 | 604,446 |
Events in quadrant D | 4,273,525 | 543,283 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 33 | 0 |
B | 0 | 33 | 0 |
C | 0 | 33 | 0 |
D | 0 | 34 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 98 | 0 |
B | 0 | 98 | 0 |
C | 0 | 98 | 0 |
D | 0 | 98 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10606 | 3 |
B | 0 | 9844 | 2 |
C | 0 | 10348 | 2 |
D | 0 | 16046 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4784 | 15 | 0.313545% |
B | 4784 | 13 | 0.271739% |
C | 4784 | 22 | 0.459866% |
D | 4784 | 138 | 2.884615% |
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 | 6937 | 4785 | 6 | 6 | 0.09% | 0.13% |  |
B | 6937 | 4785 | 3 | 3 | 0.04% | 0.06% |  |
C | 6937 | 4785 | 11 | 11 | 0.16% | 0.23% |  |
D | 6937 | 4785 | 130 | 130 | 1.87% | 2.72% |  |
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 | 392768 | 3369.4 | 578 | 570 | 116.4 |
A | 2 | 247 | 37187 | 314.58 | 578 | 570 | 116.4 |
A | 13 | 254 | 6898 | 54.36 | 578 | 570 | 116.4 |
B | 5 | 184 | 46016 | 416.68 | 577 | 564 | 109.1 |
B | 5 | 172 | 36955 | 333.61 | 577 | 564 | 109.1 |
B | 5 | 255 | 24692 | 221.19 | 577 | 564 | 109.1 |
C | 15 | 214 | 222453 | 1682.81 | 571 | 576 | 131.8 |
C | 14 | 254 | 83208 | 626.72 | 571 | 576 | 131.8 |
C | 0 | 239 | 22836 | 168.83 | 571 | 576 | 131.8 |
D | 12 | 235 | 1558524 | 11392.44 | 561 | 547 | 136.8 |
D | 2 | 153 | 234388 | 1709.92 | 561 | 547 | 136.8 |
D | 13 | 249 | 105725 | 769.1 | 561 | 547 | 136.8 |
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 |  |