Observation information
- date-obs: 2018-05-15
- time-obs: 02:11:41.625600000
- date-end: 2018-05-16
- time-end: 19:19:14.525900000
- obs_id: G08_084T01_9000002100
- exposure: 94334.0284286
- sourceid: 4U 1626-67
- observer: Kmukerjee
- ra_pnt: 248.07
- dec_pnt: -67.46091
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G08_084T01_9000002100cztM0_level2_bc.evt
| modeM0/AS1G08_084T01_9000002100cztM0_level2_quad_clean.evt
|
Size (bytes) | 5,281,683,840 | 1,928,759,040 |
Size | 4.9 GB
| 1.8 GB
|
Events in quadrant A | 28,665,653 | 12,760,307 |
Events in quadrant B | 33,814,137 | 12,818,179 |
Events in quadrant C | 32,455,064 | 12,405,336 |
Events in quadrant D | 56,423,359 | 11,777,545 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 211 | 0 |
B | 0 | 211 | 0 |
C | 0 | 211 | 0 |
D | 0 | 212 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 264424 | 0 |
B | 0 | 284713 | 0 |
C | 0 | 272633 | 0 |
D | 0 | 362377 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2580 | 0 |
B | 0 | 2580 | 0 |
C | 0 | 2580 | 0 |
D | 0 | 2580 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 126406 | 1332 | 1.053747% |
B | 126414 | 3118 | 2.466499% |
C | 126410 | 1146 | 0.906574% |
D | 126401 | 7203 | 5.698531% |
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 | 148055 | 126419 | 13 | 13 | 0.01% | 0.01% | ![](noisytime.Q0.png) |
B | 148055 | 126421 | 170 | 170 | 0.11% | 0.13% | ![](noisytime.Q1.png) |
C | 148055 | 126421 | 5 | 5 | 0.00% | 0.00% | ![](noisytime.Q2.png) |
D | 148055 | 126419 | 1756 | 1756 | 1.19% | 1.39% | ![](noisytime.Q3.png) |
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 | 12 | 189 | 1115927 | 761.94 | 6749 | 6647 | 1455.9 |
A | 8 | 15 | 966581 | 659.36 | 6749 | 6647 | 1455.9 |
A | 9 | 143 | 192229 | 127.47 | 6749 | 6647 | 1455.9 |
B | 0 | 229 | 1811215 | 1403.37 | 6766 | 6602 | 1285.9 |
B | 0 | 182 | 1732875 | 1342.45 | 6766 | 6602 | 1285.9 |
B | 4 | 97 | 993861 | 767.75 | 6766 | 6602 | 1285.9 |
C | 3 | 233 | 6629666 | 4554.76 | 6557 | 6490 | 1454.1 |
C | 14 | 234 | 96489 | 61.89 | 6557 | 6490 | 1454.1 |
C | 0 | 207 | 54905 | 33.29 | 6557 | 6490 | 1454.1 |
D | 5 | 222 | 8768149 | 5831.08 | 6438 | 6268 | 1502.6 |
D | 8 | 195 | 7682701 | 5108.71 | 6438 | 6268 | 1502.6 |
D | 12 | 110 | 6443027 | 4283.7 | 6438 | 6268 | 1502.6 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
![](dph.Q0.png) |
![](dph.Q1.png) |
Quadrant B |
Quadrant D |
![](dph.Q3.png) |
![](dph.Q2.png) |
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. |
![](countrate_histogram.png) |
![](imageFULL_DPI.png) |
Quadrant-wise count rates
Data is divided into 100 sec bins |
![](countrate_lightcurve.png) |
![](imageFULL_DPI.png) |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
![](countrate_modulerates.Q0.png) |
![](imageQ0.png) |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
![](countrate_modulerates.Q1.png) |
![](imageQ1.png) |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
![](countrate_modulerates.Q2.png) |
![](imageQ2.png) |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
![](countrate_modulerates.Q3.png) |
![](imageQ3.png) |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor | ![](hkCZTHV_Monitor.png) |
D_VDD | ![](hkDVDD.png) |
Temperature 1 | ![](hkTemperature1.png) |
Veto HV Monitor | ![](hkVetoHV_Monitor.png) |
Veto LLD | ![](hkVetoLLD.png) |
Alpha Counter | ![](hk_AlphaCounter.png) |
_CPM_Rate | ![](hk_CPM_Rate.png) |
CZT Counter | ![](hk_CZT_Counter.png) |
+2.5 Volts monitor | ![](hk_POS_2DOT5V_Monitor.png) |
+5 Volts monitor | ![](hk_POS_5V_Monitor.png) |
_ROLL_ROT | ![](hk_ROLL_ROT.png) |
_Roll_DEC | ![](hk_Roll_DEC.png) |
_Roll_RA | ![](hk_Roll_RA.png) |
Veto Counter | ![](hk_VetoCounter.png) |