Observation information
- date-obs: 2020-11-26
- time-obs: 06:16:27.171900000
- date-end: 2020-11-27
- time-end: 11:42:59.124100000
- obs_id: A10_049T01_9000004032
- exposure: 64318.7352176
- sourceid: 1H 0419-577
- observer: samuzal_astrosat
- ra_pnt: 66.50296
- dec_pnt: -57.20049
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A10_049T01_9000004032cztM0_level2_bc.evt
| modeM0/AS1A10_049T01_9000004032cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,983,218,560 | 1,370,741,760 |
Size | 3.7 GB
| 1.3 GB
|
Events in quadrant A | 20,851,631 | 9,163,648 |
Events in quadrant B | 26,002,313 | 9,123,107 |
Events in quadrant C | 22,070,244 | 8,646,053 |
Events in quadrant D | 45,550,770 | 8,380,543 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 158 | 0 |
B | 0 | 158 | 0 |
C | 0 | 158 | 0 |
D | 0 | 158 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1840 | 0 |
B | 0 | 1840 | 0 |
C | 0 | 1840 | 0 |
D | 0 | 1840 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 192947 | 0 |
B | 0 | 212031 | 0 |
C | 0 | 200320 | 0 |
D | 0 | 277731 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 90573 | 1073 | 1.184680% |
B | 90573 | 2192 | 2.420147% |
C | 90573 | 2109 | 2.328508% |
D | 90573 | 4166 | 4.599605% |
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 | 105993 | 90564 | 4 | 4 | 0.00% | 0.00% |  |
B | 105993 | 90563 | 39 | 39 | 0.04% | 0.04% |  |
C | 105993 | 90559 | 58 | 58 | 0.05% | 0.06% |  |
D | 105993 | 90562 | 875 | 875 | 0.83% | 0.97% |  |
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 | 15 | 174 | 607644 | 543.34 | 5216 | 5143 | 1108.9 |
A | 13 | 254 | 146316 | 127.31 | 5216 | 5143 | 1108.9 |
A | 8 | 192 | 75111 | 63.1 | 5216 | 5143 | 1108.9 |
B | 10 | 245 | 4782859 | 4966.35 | 5205 | 5103 | 962.0 |
B | 0 | 230 | 569719 | 586.9 | 5205 | 5103 | 962.0 |
B | 15 | 32 | 161334 | 162.4 | 5205 | 5103 | 962.0 |
C | 2 | 16 | 1805211 | 1563.19 | 4929 | 4936 | 1151.7 |
C | 3 | 233 | 1181813 | 1021.89 | 4929 | 4936 | 1151.7 |
C | 6 | 112 | 99005 | 81.68 | 4929 | 4936 | 1151.7 |
D | 1 | 52 | 9911890 | 8638.96 | 5000 | 4861 | 1146.8 |
D | 8 | 195 | 9336372 | 8137.11 | 5000 | 4861 | 1146.8 |
D | 2 | 250 | 1957998 | 1703.14 | 5000 | 4861 | 1146.8 |
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 |  |