Observation information
- date-obs: 2018-12-21
- time-obs: 17:40:42.469300000
- date-end: 2018-12-21
- time-end: 19:50:52.469800000
- obs_id: A05_198T01_9000002586
- exposure: 5296.97984844
- 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_9000002586_17475cztM0_level2.evt
| modeM0/AS1A05_198T01_9000002586_17475cztM0_level2_quad_clean.evt
|
| Size (bytes) | 567,708,480 | 105,894,720 |
| Size | 541.4 MB
| 101.0 MB
|
| Events in quadrant A | 3,716,654 | 683,312 |
| Events in quadrant B | 4,008,728 | 691,898 |
| Events in quadrant C | 3,696,332 | 661,689 |
| Events in quadrant D | 5,255,028 | 640,449 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16124 | 2 |
| B | 0 | 16809 | 2 |
| C | 0 | 15703 | 2 |
| D | 0 | 20654 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7615 | 56 | 0.735391% |
| B | 7616 | 73 | 0.958508% |
| C | 7616 | 57 | 0.748424% |
| D | 7616 | 330 | 4.332983% |
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 | 7810 | 7616 | 23 | 23 | 0.29% | 0.30% |  |
| B | 7811 | 7617 | 11 | 11 | 0.14% | 0.14% |  |
| C | 7811 | 7617 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7811 | 7617 | 232 | 232 | 2.97% | 3.05% |  |
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 | 177291 | 942.59 | 919 | 900 | 187.1 |
| A | 0 | 226 | 8102 | 38.49 | 919 | 900 | 187.1 |
| A | 12 | 194 | 6916 | 32.15 | 919 | 900 | 187.1 |
| B | 0 | 230 | 62216 | 347.33 | 920 | 898 | 176.5 |
| B | 12 | 18 | 62169 | 347.06 | 920 | 898 | 176.5 |
| B | 4 | 216 | 53248 | 296.53 | 920 | 898 | 176.5 |
| C | 14 | 238 | 133230 | 643.53 | 876 | 877 | 205.7 |
| C | 5 | 218 | 95928 | 462.16 | 876 | 877 | 205.7 |
| C | 5 | 219 | 22413 | 104.71 | 876 | 877 | 205.7 |
| D | 7 | 238 | 636136 | 2946.6 | 875 | 848 | 215.6 |
| D | 13 | 189 | 625890 | 2899.08 | 875 | 848 | 215.6 |
| D | 10 | 70 | 433045 | 2004.62 | 875 | 848 | 215.6 |
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 |  |