Observation information
- date-obs: 2021-02-13
- time-obs: 20:41:00.086900000
- date-end: 2021-02-15
- time-end: 12:27:08.953500000
- obs_id: A10_063T01_9000004182
- exposure: 76852.0364331
- sourceid: PG 1404+226
- observer: samuzal_astrosat
- ra_pnt: 211.5912
- dec_pnt: 22.39625
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A10_063T01_9000004182cztM0_level2_bc.evt
| modeM0/AS1A10_063T01_9000004182cztM0_level2_quad_clean.evt
|
Size (bytes) | 5,735,989,440 | 1,642,357,440 |
Size | 5.3 GB
| 1.5 GB
|
Events in quadrant A | 27,788,071 | 10,441,894 |
Events in quadrant B | 31,061,412 | 10,639,612 |
Events in quadrant C | 34,114,974 | 10,285,845 |
Events in quadrant D | 72,193,257 | 9,754,260 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 267130 | 0 |
B | 0 | 279140 | 0 |
C | 0 | 291900 | 0 |
D | 0 | 417060 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 172 | 0 |
B | 0 | 172 | 0 |
C | 0 | 172 | 0 |
D | 0 | 172 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2558 | 0 |
B | 0 | 2558 | 0 |
C | 0 | 2558 | 0 |
D | 0 | 2558 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 125835 | 1950 | 1.549648% |
B | 125834 | 2848 | 2.263299% |
C | 125835 | 2973 | 2.362618% |
D | 125834 | 12964 | 10.302462% |
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 | 143169 | 125841 | 114 | 114 | 0.08% | 0.09% |  |
B | 143170 | 125837 | 129 | 129 | 0.09% | 0.10% |  |
C | 143170 | 125838 | 0 | 0 | 0.00% | 0.00% |  |
D | 143170 | 125838 | 3783 | 3783 | 2.64% | 3.01% |  |
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 | 11 | 29 | 525815 | 352.24 | 6898 | 6785 | 1473.5 |
A | 6 | 16 | 261944 | 173.16 | 6898 | 6785 | 1473.5 |
A | 13 | 254 | 207207 | 136.02 | 6898 | 6785 | 1473.5 |
B | 10 | 245 | 2909718 | 2243.0 | 6964 | 6808 | 1294.2 |
B | 10 | 246 | 473236 | 360.4 | 6964 | 6808 | 1294.2 |
B | 0 | 190 | 443852 | 337.69 | 6964 | 6808 | 1294.2 |
C | 3 | 233 | 7947977 | 5080.04 | 6692 | 6671 | 1563.2 |
C | 2 | 114 | 245215 | 152.6 | 6692 | 6671 | 1563.2 |
C | 9 | 54 | 66950 | 38.56 | 6692 | 6671 | 1563.2 |
D | 1 | 52 | 25084745 | 16890.14 | 6567 | 6366 | 1484.8 |
D | 8 | 195 | 19887608 | 13389.9 | 6567 | 6366 | 1484.8 |
D | 12 | 233 | 859084 | 574.3 | 6567 | 6366 | 1484.8 |
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 |  |