Observation information
- date-obs: 2017-11-17
- time-obs: 11:27:51.892300000
- date-end: 2017-11-18
- time-end: 02:06:30.847500000
- obs_id: A04_112T01_9000001698
- exposure: 33481.8077815
- sourceid: LMC X-3
- observer: anuj
- ra_pnt: 84.73454
- dec_pnt: -64.08417
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_112T01_9000001698cztM0_level2_bc.evt
| modeM0/AS1A04_112T01_9000001698cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,149,436,160 | 629,285,760 |
Size | 2.0 GB
| 600.1 MB
|
Events in quadrant A | 22,851,383 | 3,890,125 |
Events in quadrant B | 17,367,812 | 4,031,396 |
Events in quadrant C | 8,813,321 | 4,050,430 |
Events in quadrant D | 12,896,210 | 3,897,531 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 152615 | 0 |
B | 0 | 131492 | 0 |
C | 0 | 94792 | 0 |
D | 0 | 109109 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 64 | 0 |
B | 0 | 64 | 0 |
C | 0 | 64 | 0 |
D | 0 | 64 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 944 | 0 |
B | 0 | 944 | 0 |
C | 0 | 944 | 0 |
D | 0 | 944 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 46475 | 5161 | 11.104895% |
B | 46475 | 4026 | 8.662722% |
C | 46475 | 412 | 0.886498% |
D | 46475 | 1195 | 2.571275% |
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 | 52721 | 46472 | 533 | 533 | 1.01% | 1.15% |  |
B | 52721 | 46476 | 69 | 69 | 0.13% | 0.15% |  |
C | 52721 | 46478 | 0 | 0 | 0.00% | 0.00% |  |
D | 52721 | 46476 | 111 | 111 | 0.21% | 0.24% |  |
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 | 8 | 5 | 13415411 | 28322.12 | 2165 | 2126 | 473.6 |
A | 1 | 162 | 439607 | 923.74 | 2165 | 2126 | 473.6 |
A | 15 | 174 | 244273 | 511.29 | 2165 | 2126 | 473.6 |
B | 4 | 239 | 5755545 | 13461.02 | 2231 | 2172 | 427.4 |
B | 3 | 64 | 951163 | 2220.33 | 2231 | 2172 | 427.4 |
B | 15 | 204 | 746108 | 1740.57 | 2231 | 2172 | 427.4 |
C | 0 | 10 | 33877 | 64.17 | 2234 | 2202 | 493.6 |
C | 13 | 61 | 13618 | 23.13 | 2234 | 2202 | 493.6 |
C | 8 | 128 | 12866 | 21.6 | 2234 | 2202 | 493.6 |
D | 2 | 120 | 819663 | 1570.4 | 2243 | 2163 | 520.6 |
D | 10 | 253 | 717123 | 1373.43 | 2243 | 2163 | 520.6 |
D | 13 | 137 | 683879 | 1309.57 | 2243 | 2163 | 520.6 |
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 |  |