Observation information
- date-obs: 2019-01-03
- time-obs: 08:28:15.397500000
- date-end: 2019-01-04
- time-end: 15:16:47.405000000
- obs_id: A05_208T01_9000002614
- exposure: 53703.6288445
- sourceid: NGC 4939
- observer: KshamaSK
- ra_pnt: 196.0599
- dec_pnt: -10.3396
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A05_208T01_9000002614cztM0_level2_bc.evt
| modeM0/AS1A05_208T01_9000002614cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,021,145,920 | 1,115,922,240 |
Size | 2.8 GB
| 1.0 GB
|
Events in quadrant A | 18,849,058 | 7,003,678 |
Events in quadrant B | 20,191,278 | 7,141,532 |
Events in quadrant C | 23,682,376 | 6,826,731 |
Events in quadrant D | 22,713,064 | 6,733,263 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 123 | 0 |
B | 0 | 124 | 0 |
C | 0 | 124 | 0 |
D | 0 | 124 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 186041 | 0 |
B | 0 | 191876 | 0 |
C | 0 | 207501 | 0 |
D | 0 | 199877 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1814 | 0 |
B | 0 | 1814 | 0 |
C | 0 | 1814 | 0 |
D | 0 | 1814 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 88894 | 1361 | 1.531037% |
B | 88893 | 1811 | 2.037281% |
C | 88893 | 2031 | 2.284769% |
D | 88894 | 2025 | 2.277994% |
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 | 110913 | 88896 | 0 | 0 | 0.00% | 0.00% |  |
B | 110913 | 88892 | 23 | 23 | 0.02% | 0.03% |  |
C | 110913 | 88894 | 0 | 0 | 0.00% | 0.00% |  |
D | 110913 | 88892 | 191 | 191 | 0.17% | 0.21% |  |
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 | 14 | 237 | 1040483 | 1027.92 | 4589 | 4486 | 1007.9 |
A | 8 | 205 | 142693 | 137.13 | 4589 | 4486 | 1007.9 |
A | 4 | 2 | 37106 | 32.37 | 4589 | 4486 | 1007.9 |
B | 10 | 245 | 659175 | 752.89 | 4630 | 4507 | 869.5 |
B | 7 | 220 | 491955 | 560.58 | 4630 | 4507 | 869.5 |
B | 0 | 189 | 229917 | 259.23 | 4630 | 4507 | 869.5 |
C | 3 | 233 | 6357024 | 6156.13 | 4436 | 4415 | 1031.9 |
C | 5 | 218 | 187413 | 177.34 | 4436 | 4415 | 1031.9 |
C | 9 | 54 | 37668 | 32.22 | 4436 | 4415 | 1031.9 |
D | 1 | 52 | 1532815 | 1472.76 | 4523 | 4358 | 1037.8 |
D | 5 | 222 | 1393150 | 1338.19 | 4523 | 4358 | 1037.8 |
D | 7 | 238 | 902994 | 865.89 | 4523 | 4358 | 1037.8 |
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 |  |