Observation information
- date-obs: 2018-02-22
- time-obs: 17:42:52.685500000
- date-end: 2018-02-23
- time-end: 13:54:47.623300000
- obs_id: T02_002T01_9000001914
- exposure: 59296.4181924
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T02_002T01_9000001914cztM0_level2_bc.evt
| modeM0/AS1T02_002T01_9000001914cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,482,528,320 | 1,124,225,280 |
Size | 2.3 GB
| 1.0 GB
|
Events in quadrant A | 14,713,766 | 7,755,219 |
Events in quadrant B | 23,869,831 | 6,877,166 |
Events in quadrant C | 12,394,993 | 7,834,287 |
Events in quadrant D | 20,003,830 | 7,361,374 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1252 | 0 |
B | 0 | 1252 | 0 |
C | 0 | 1252 | 0 |
D | 0 | 1252 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 113 | 0 |
B | 0 | 113 | 0 |
C | 0 | 113 | 0 |
D | 0 | 113 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134315 | 0 |
B | 0 | 195022 | 0 |
C | 0 | 126040 | 0 |
D | 0 | 152021 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 61570 | 916 | 1.487738% |
B | 61570 | 11484 | 18.651941% |
C | 61570 | 297 | 0.482378% |
D | 61570 | 2389 | 3.880136% |
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 | 72717 | 61573 | 25 | 25 | 0.03% | 0.04% |  |
B | 72716 | 61226 | 523 | 523 | 0.72% | 0.85% |  |
C | 72717 | 61574 | 8 | 8 | 0.01% | 0.01% |  |
D | 72717 | 61570 | 429 | 429 | 0.59% | 0.70% |  |
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 | 1123703 | 1656.61 | 3111 | 3059 | 676.5 |
A | 15 | 223 | 609624 | 896.67 | 3111 | 3059 | 676.5 |
A | 13 | 248 | 302277 | 442.33 | 3111 | 3059 | 676.5 |
B | 4 | 239 | 10279067 | 19371.01 | 2757 | 2684 | 530.5 |
B | 3 | 64 | 1251213 | 2353.48 | 2757 | 2684 | 530.5 |
B | 0 | 219 | 350730 | 656.07 | 2757 | 2684 | 530.5 |
C | 0 | 207 | 269353 | 393.34 | 3075 | 3039 | 677.1 |
C | 14 | 234 | 76780 | 108.91 | 3075 | 3039 | 677.1 |
C | 12 | 4 | 19629 | 24.5 | 3075 | 3039 | 677.1 |
D | 1 | 52 | 7639661 | 10822.87 | 3040 | 2942 | 705.6 |
D | 8 | 195 | 329347 | 462.59 | 3040 | 2942 | 705.6 |
D | 2 | 234 | 209033 | 292.08 | 3040 | 2942 | 705.6 |
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 |  |