Observation information
- date-obs: 2018-12-21
- time-obs: 16:56:09.468800000
- date-end: 2018-12-22
- time-end: 02:08:38.467600000
- obs_id: A05_198T01_9000002586
- exposure: 18451.1365544
- sourceid: MCG-2-58-22
- observer: astrosat2susmita
- ra_pnt: 346.1812
- dec_pnt: -8.68573
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A05_198T01_9000002586cztM0_level2_bc.evt
| modeM0/AS1A05_198T01_9000002586cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,126,725,120 | 378,270,720 |
Size | 1.0 GB
| 360.7 MB
|
Events in quadrant A | 7,321,355 | 2,368,511 |
Events in quadrant B | 6,902,272 | 2,402,315 |
Events in quadrant C | 6,260,897 | 2,315,120 |
Events in quadrant D | 11,516,085 | 2,235,540 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 68922 | 0 |
B | 0 | 66446 | 0 |
C | 0 | 63656 | 0 |
D | 0 | 84478 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 632 | 0 |
B | 0 | 632 | 0 |
C | 0 | 632 | 0 |
D | 0 | 632 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21 | 0 |
B | 0 | 21 | 0 |
C | 0 | 21 | 0 |
D | 0 | 21 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 31070 | 570 | 1.834567% |
B | 31070 | 342 | 1.100740% |
C | 31070 | 314 | 1.010621% |
D | 31070 | 1465 | 4.715159% |
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 | 33150 | 31073 | 13 | 13 | 0.04% | 0.04% |  |
B | 33150 | 31070 | 0 | 0 | 0.00% | 0.00% |  |
C | 33150 | 31072 | 0 | 0 | 0.00% | 0.00% |  |
D | 33150 | 31072 | 85 | 85 | 0.26% | 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 | 1301360 | 3767.88 | 1557 | 1521 | 345.0 |
A | 13 | 210 | 13777 | 35.53 | 1557 | 1521 | 345.0 |
A | 15 | 191 | 11451 | 28.78 | 1557 | 1521 | 345.0 |
B | 7 | 220 | 122023 | 400.43 | 1573 | 1530 | 300.9 |
B | 0 | 230 | 106417 | 348.56 | 1573 | 1530 | 300.9 |
B | 0 | 197 | 94744 | 309.77 | 1573 | 1530 | 300.9 |
C | 5 | 218 | 317146 | 891.58 | 1504 | 1491 | 354.0 |
C | 5 | 219 | 73505 | 203.41 | 1504 | 1491 | 354.0 |
C | 5 | 37 | 30070 | 80.72 | 1504 | 1491 | 354.0 |
D | 7 | 238 | 1949009 | 5460.24 | 1514 | 1457 | 356.7 |
D | 10 | 70 | 1778817 | 4983.09 | 1514 | 1457 | 356.7 |
D | 13 | 189 | 951399 | 2663.3 | 1514 | 1457 | 356.7 |
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 |  |