Observation information
- date-obs: 2017-12-21
- time-obs: 13:53:27.287700000
- date-end: 2017-12-21
- time-end: 16:03:07.291600000
- obs_id: C03_015T01_9000001788
- exposure: 6460.37520013
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C03_015T01_9000001788cztM0_level2_bc.evt
| modeM0/AS1C03_015T01_9000001788cztM0_level2_quad_clean.evt
|
Size (bytes) | 238,187,520 | 133,182,720 |
Size | 227.2 MB
| 127.0 MB
|
Events in quadrant A | 1,553,102 | 903,429 |
Events in quadrant B | 1,922,388 | 901,450 |
Events in quadrant C | 1,421,755 | 907,748 |
Events in quadrant D | 1,864,872 | 867,124 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14099 | 0 |
B | 0 | 15637 | 0 |
C | 0 | 13421 | 0 |
D | 0 | 14665 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 13 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6521 | 106 | 1.625518% |
B | 6521 | 237 | 3.634412% |
C | 6521 | 53 | 0.812759% |
D | 6521 | 95 | 1.456832% |
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 | 7782 | 6521 | 3 | 3 | 0.04% | 0.05% |  |
B | 7782 | 6521 | 1 | 1 | 0.01% | 0.02% |  |
C | 7782 | 6521 | 0 | 0 | 0.00% | 0.00% |  |
D | 7782 | 6521 | 19 | 19 | 0.24% | 0.29% |  |
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 | 13 | 251 | 84987 | 1055.4 | 361 | 355 | 80.2 |
A | 1 | 162 | 21917 | 268.89 | 361 | 355 | 80.2 |
A | 14 | 63 | 19634 | 240.42 | 361 | 355 | 80.2 |
B | 4 | 239 | 356465 | 5098.13 | 360 | 352 | 69.9 |
B | 15 | 204 | 102631 | 1464.23 | 360 | 352 | 69.9 |
B | 0 | 219 | 21881 | 308.21 | 360 | 352 | 69.9 |
C | 0 | 207 | 16950 | 203.99 | 359 | 355 | 81.4 |
C | 13 | 61 | 2169 | 22.3 | 359 | 355 | 81.4 |
C | 14 | 234 | 1877 | 18.71 | 359 | 355 | 81.4 |
D | 1 | 52 | 299793 | 3666.83 | 357 | 346 | 81.7 |
D | 8 | 195 | 81314 | 991.48 | 357 | 346 | 81.7 |
D | 7 | 71 | 30892 | 374.05 | 357 | 346 | 81.7 |
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 |  |