Observation information
- date-obs: 2021-12-28
- time-obs: 09:58:45.987800000
- date-end: 2021-12-28
- time-end: 22:45:56.897600000
- obs_id: T04_091T01_9000004822
- exposure: 18536.0212415
- sourceid: ngc4509
- observer: jyoti
- ra_pnt: 188.2771
- dec_pnt: 32.0909
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T04_091T01_9000004822cztM0_level2_bc.evt
| modeM0/AS1T04_091T01_9000004822cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,914,572,160 | 396,457,920 |
Size | 1.8 GB
| 378.1 MB
|
Events in quadrant A | 12,504,558 | 2,451,734 |
Events in quadrant B | 9,861,633 | 2,574,810 |
Events in quadrant C | 10,057,502 | 2,590,916 |
Events in quadrant D | 23,576,359 | 2,384,241 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 596 | 0 |
B | 0 | 590 | 0 |
C | 0 | 596 | 0 |
D | 0 | 590 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 92454 | 0 |
B | 0 | 74000 | 0 |
C | 0 | 71728 | 0 |
D | 0 | 116776 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 141 | 0 |
B | 0 | 144 | 0 |
C | 0 | 140 | 0 |
D | 0 | 139 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 29178 | 3882 | 13.304545% |
B | 29243 | 868 | 2.968232% |
C | 29254 | 432 | 1.476721% |
D | 29034 | 2444 | 8.417717% |
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 | 42487 | 29585 | 126 | 126 | 0.30% | 0.43% |  |
B | 42487 | 29668 | 31 | 31 | 0.07% | 0.10% |  |
C | 42487 | 29661 | 138 | 138 | 0.32% | 0.47% |  |
D | 42474 | 29401 | 304 | 304 | 0.72% | 1.03% |  |
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 | 15 | 237 | 6379747 | 19038.62 | 1541 | 1522 | 335.0 |
A | 13 | 6 | 77414 | 226.53 | 1541 | 1522 | 335.0 |
A | 13 | 254 | 45926 | 132.54 | 1541 | 1522 | 335.0 |
B | 5 | 172 | 2168018 | 6834.79 | 1641 | 1612 | 317.0 |
B | 4 | 251 | 189489 | 592.73 | 1641 | 1612 | 317.0 |
B | 0 | 219 | 182910 | 571.98 | 1641 | 1612 | 317.0 |
C | 15 | 214 | 1174615 | 3227.32 | 1626 | 1623 | 363.5 |
C | 9 | 187 | 634571 | 1741.47 | 1626 | 1623 | 363.5 |
C | 3 | 233 | 608997 | 1671.1 | 1626 | 1623 | 363.5 |
D | 8 | 195 | 8389535 | 22145.81 | 1584 | 1540 | 378.8 |
D | 12 | 235 | 4397044 | 11604.92 | 1584 | 1540 | 378.8 |
D | 2 | 250 | 1803098 | 4756.44 | 1584 | 1540 | 378.8 |
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 |  |