Observation information
- date-obs: 2019-05-07
- time-obs: 12:36:44.292500000
- date-end: 2019-05-08
- time-end: 18:58:32.307900000
- obs_id: A05_175T01_9000002894
- exposure: 58689.4568347
- sourceid: Mkn 478
- observer: samuzal_astrosat
- ra_pnt: 220.5308
- dec_pnt: 35.43972
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A05_175T01_9000002894cztM0_level2_bc.evt
| modeM0/AS1A05_175T01_9000002894cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,995,496,000 | 1,215,855,360 |
Size | 3.7 GB
| 1.1 GB
|
Events in quadrant A | 19,687,039 | 7,968,836 |
Events in quadrant B | 21,096,985 | 8,002,221 |
Events in quadrant C | 21,531,775 | 7,620,753 |
Events in quadrant D | 52,205,372 | 6,708,120 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 142 | 0 |
B | 0 | 142 | 0 |
C | 0 | 142 | 0 |
D | 0 | 142 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 196966 | 0 |
B | 0 | 201214 | 0 |
C | 0 | 203404 | 0 |
D | 0 | 312079 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1942 | 0 |
B | 0 | 1942 | 0 |
C | 0 | 1942 | 0 |
D | 0 | 1942 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 95178 | 1189 | 1.249238% |
B | 95178 | 1731 | 1.818698% |
C | 95178 | 1980 | 2.080313% |
D | 95178 | 13581 | 14.269054% |
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 | 109309 | 95175 | 2 | 2 | 0.00% | 0.00% |  |
B | 109309 | 95176 | 135 | 135 | 0.12% | 0.14% |  |
C | 109309 | 95176 | 40 | 40 | 0.04% | 0.04% |  |
D | 109308 | 95172 | 5683 | 5683 | 5.20% | 5.97% |  |
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 | 13 | 254 | 90711 | 77.79 | 5072 | 4979 | 1102.1 |
A | 11 | 47 | 82632 | 70.46 | 5072 | 4979 | 1102.1 |
A | 4 | 2 | 51083 | 41.83 | 5072 | 4979 | 1102.1 |
B | 3 | 64 | 822178 | 857.12 | 5079 | 4951 | 953.5 |
B | 0 | 198 | 262264 | 269.87 | 5079 | 4951 | 953.5 |
B | 4 | 171 | 127181 | 128.2 | 5079 | 4951 | 953.5 |
C | 3 | 233 | 1519016 | 1341.95 | 4836 | 4810 | 1128.4 |
C | 9 | 221 | 512674 | 450.09 | 4836 | 4810 | 1128.4 |
C | 5 | 112 | 504360 | 442.72 | 4836 | 4810 | 1128.4 |
D | 7 | 238 | 24598768 | 22987.49 | 4639 | 4475 | 1069.9 |
D | 1 | 52 | 4751422 | 4436.82 | 4639 | 4475 | 1069.9 |
D | 12 | 218 | 3257966 | 3040.93 | 4639 | 4475 | 1069.9 |
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 |  |