Observation information
- date-obs: 2023-08-15
- time-obs: 03:48:28.376800000
- date-end: 2023-08-15
- time-end: 05:51:33.370900000
- obs_id: A12_061T07_9000005818
- exposure: 4648.79871756
- 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_42605cztM0_level2.fits
| modeM0/AS1A12_061T07_9000005818_42605cztM0_level2_quad_clean.evt
|
Size (bytes) | 313,191,360 | 88,459,200 |
Size | 298.7 MB
| 84.4 MB
|
Events in quadrant A | 2,720,606 | 594,982 |
Events in quadrant B | 2,355,963 | 615,646 |
Events in quadrant C | 2,468,880 | 599,372 |
Events in quadrant D | 3,664,035 | 523,826 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10940 | 2 |
B | 0 | 10176 | 2 |
C | 0 | 10088 | 2 |
D | 0 | 14200 | 2 |
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 M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25 | 0 |
B | 0 | 26 | 0 |
C | 0 | 26 | 0 |
D | 0 | 26 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4925 | 15 | 0.304569% |
B | 4925 | 17 | 0.345178% |
C | 4925 | 4 | 0.081218% |
D | 4924 | 283 | 5.747360% |
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 | 7048 | 4926 | 4 | 4 | 0.06% | 0.08% |  |
B | 7048 | 4926 | 5 | 5 | 0.07% | 0.10% |  |
C | 7048 | 4926 | 0 | 0 | 0.00% | 0.00% |  |
D | 7047 | 4925 | 248 | 248 | 3.52% | 5.04% |  |
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 | 516243 | 4477.74 | 565 | 554 | 115.2 |
A | 15 | 237 | 11090 | 91.48 | 565 | 554 | 115.2 |
A | 13 | 254 | 6842 | 54.6 | 565 | 554 | 115.2 |
B | 0 | 245 | 65193 | 596.45 | 562 | 548 | 108.4 |
B | 7 | 202 | 24750 | 223.3 | 562 | 548 | 108.4 |
B | 5 | 255 | 22988 | 207.05 | 562 | 548 | 108.4 |
C | 15 | 214 | 222953 | 1706.87 | 564 | 570 | 130.3 |
C | 3 | 233 | 28807 | 216.73 | 564 | 570 | 130.3 |
C | 14 | 254 | 12313 | 90.13 | 564 | 570 | 130.3 |
D | 1 | 52 | 1112444 | 8277.41 | 551 | 537 | 134.3 |
D | 12 | 6 | 153755 | 1140.61 | 551 | 537 | 134.3 |
D | 2 | 249 | 99011 | 733.07 | 551 | 537 | 134.3 |
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 |  |