Observation information
- date-obs: 2023-01-05
- time-obs: 06:15:15.684100000
- date-end: 2023-01-05
- time-end: 08:32:12.685900000
- obs_id: A12_061T07_9000005468
- exposure: 4789.04797494
- 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_39318cztM0_level2.fits
| modeM0/AS1A12_061T07_9000005468_39318cztM0_level2_quad_clean.evt
|
Size (bytes) | 337,080,960 | 91,880,640 |
Size | 321.5 MB
| 87.6 MB
|
Events in quadrant A | 2,832,085 | 622,839 |
Events in quadrant B | 2,418,634 | 645,827 |
Events in quadrant C | 2,663,984 | 616,109 |
Events in quadrant D | 4,174,251 | 547,441 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 32 | 0 |
B | 0 | 32 | 0 |
C | 0 | 32 | 0 |
D | 0 | 33 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 102 | 0 |
B | 0 | 102 | 0 |
C | 0 | 102 | 0 |
D | 0 | 102 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11221 | 2 |
B | 0 | 10193 | 1 |
C | 0 | 10696 | 1 |
D | 0 | 15761 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4994 | 21 | 0.420505% |
B | 4994 | 13 | 0.260312% |
C | 4994 | 22 | 0.440529% |
D | 4994 | 248 | 4.965959% |
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 | 7086 | 4995 | 10 | 10 | 0.14% | 0.20% |  |
B | 7086 | 4995 | 3 | 3 | 0.04% | 0.06% |  |
C | 7086 | 4995 | 10 | 10 | 0.14% | 0.20% |  |
D | 7086 | 4995 | 240 | 240 | 3.39% | 4.80% |  |
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 | 411079 | 3441.91 | 596 | 585 | 119.3 |
A | 13 | 248 | 68571 | 570.05 | 596 | 585 | 119.3 |
A | 15 | 222 | 42175 | 348.72 | 596 | 585 | 119.3 |
B | 0 | 190 | 33190 | 290.14 | 593 | 578 | 112.4 |
B | 5 | 172 | 31063 | 271.22 | 593 | 578 | 112.4 |
B | 5 | 184 | 17065 | 146.68 | 593 | 578 | 112.4 |
C | 15 | 214 | 228284 | 1682.52 | 586 | 590 | 135.3 |
C | 9 | 187 | 74136 | 543.46 | 586 | 590 | 135.3 |
C | 14 | 254 | 72666 | 532.6 | 586 | 590 | 135.3 |
D | 12 | 235 | 1613172 | 11449.59 | 575 | 558 | 140.8 |
D | 2 | 249 | 188186 | 1332.16 | 575 | 558 | 140.8 |
D | 12 | 227 | 51912 | 364.61 | 575 | 558 | 140.8 |
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 |  |