Observation information
- date-obs: 2017-11-08
- time-obs: 06:46:34.651600000
- date-end: 2017-11-08
- time-end: 17:59:00.650400000
- obs_id: G08_010T01_9000001672
- exposure: 23956.2913902
- sourceid: ngc 253
- observer: jmurthy
- ra_pnt: 11.888
- dec_pnt: -25.28822
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G08_010T01_9000001672cztM0_level2_bc.evt
| modeM0/AS1G08_010T01_9000001672cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,248,603,840 | 483,425,280 |
Size | 1.2 GB
| 461.0 MB
|
Events in quadrant A | 7,430,564 | 3,178,653 |
Events in quadrant B | 12,132,681 | 3,096,247 |
Events in quadrant C | 6,729,818 | 3,094,724 |
Events in quadrant D | 9,247,398 | 2,985,269 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 71 | 0 |
B | 0 | 71 | 0 |
C | 0 | 71 | 0 |
D | 0 | 71 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 71641 | 0 |
B | 0 | 91450 | 0 |
C | 0 | 68910 | 0 |
D | 0 | 76882 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 678 | 0 |
B | 0 | 678 | 0 |
C | 0 | 678 | 0 |
D | 0 | 678 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 33297 | 467 | 1.402529% |
B | 33297 | 2085 | 6.261825% |
C | 33297 | 293 | 0.879959% |
D | 33297 | 768 | 2.306514% |
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 | 40212 | 33297 | 6 | 6 | 0.01% | 0.02% |  |
B | 40212 | 33297 | 64 | 64 | 0.16% | 0.19% |  |
C | 40212 | 33298 | 0 | 0 | 0.00% | 0.00% |  |
D | 40212 | 33298 | 91 | 91 | 0.23% | 0.27% |  |
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 | 15 | 174 | 234471 | 601.11 | 1778 | 1746 | 387.2 |
A | 8 | 5 | 117405 | 298.74 | 1778 | 1746 | 387.2 |
A | 1 | 162 | 94835 | 240.44 | 1778 | 1746 | 387.2 |
B | 4 | 239 | 3804934 | 11526.33 | 1752 | 1709 | 330.0 |
B | 3 | 64 | 475566 | 1436.11 | 1752 | 1709 | 330.0 |
B | 3 | 189 | 353086 | 1064.91 | 1752 | 1709 | 330.0 |
C | 8 | 128 | 10830 | 24.42 | 1714 | 1696 | 374.1 |
C | 13 | 61 | 10070 | 22.38 | 1714 | 1696 | 374.1 |
C | 8 | 112 | 7584 | 15.74 | 1714 | 1696 | 374.1 |
D | 1 | 52 | 739562 | 1841.03 | 1725 | 1665 | 400.8 |
D | 13 | 152 | 433631 | 1077.74 | 1725 | 1665 | 400.8 |
D | 10 | 253 | 281580 | 698.38 | 1725 | 1665 | 400.8 |
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 |  |