Observation information
- date-obs: 2018-07-26
- time-obs: 19:03:02.378600000
- date-end: 2018-07-28
- time-end: 04:32:05.442500000
- obs_id: A04_223T01_9000002258
- exposure: 62481.1526284
- sourceid: 4U 1812-12
- observer: gaurava
- ra_pnt: 273.7756
- dec_pnt: -12.09631
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_223T01_9000002258cztM0_level2_bc.evt
| modeM0/AS1A04_223T01_9000002258cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,502,840,320 | 1,323,564,480 |
Size | 3.3 GB
| 1.2 GB
|
Events in quadrant A | 21,190,873 | 8,382,812 |
Events in quadrant B | 28,367,876 | 8,435,814 |
Events in quadrant C | 25,891,359 | 8,263,264 |
Events in quadrant D | 23,548,196 | 7,882,519 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 162 | 0 |
B | 0 | 162 | 0 |
C | 0 | 162 | 0 |
D | 0 | 162 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 216278 | 0 |
B | 0 | 242986 | 0 |
C | 0 | 225691 | 0 |
D | 0 | 222832 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2126 | 0 |
B | 0 | 2126 | 0 |
C | 0 | 2126 | 0 |
D | 0 | 2126 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 103959 | 1035 | 0.995585% |
B | 103959 | 3424 | 3.293606% |
C | 103959 | 1063 | 1.022518% |
D | 103959 | 1297 | 1.247607% |
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 | 120545 | 103954 | 7 | 7 | 0.01% | 0.01% |  |
B | 120545 | 103956 | 234 | 234 | 0.19% | 0.23% |  |
C | 120545 | 103958 | 8 | 8 | 0.01% | 0.01% |  |
D | 120545 | 103956 | 139 | 139 | 0.12% | 0.13% |  |
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 | 9 | 143 | 281065 | 234.96 | 5413 | 5312 | 1173.6 |
A | 15 | 69 | 78375 | 62.26 | 5413 | 5312 | 1173.6 |
A | 13 | 252 | 39331 | 28.99 | 5413 | 5312 | 1173.6 |
B | 10 | 16 | 4797104 | 4715.42 | 5402 | 5255 | 1016.2 |
B | 3 | 64 | 530982 | 517.34 | 5402 | 5255 | 1016.2 |
B | 0 | 229 | 314230 | 304.05 | 5402 | 5255 | 1016.2 |
C | 3 | 233 | 4295812 | 3740.07 | 5251 | 5180 | 1147.2 |
C | 4 | 254 | 654521 | 566.02 | 5251 | 5180 | 1147.2 |
C | 3 | 9 | 258074 | 220.44 | 5251 | 5180 | 1147.2 |
D | 2 | 33 | 949431 | 779.08 | 5280 | 5095 | 1212.1 |
D | 7 | 38 | 619121 | 506.57 | 5280 | 5095 | 1212.1 |
D | 2 | 234 | 393608 | 320.52 | 5280 | 5095 | 1212.1 |
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 |  |