Observation information
- date-obs: 2018-12-17
- time-obs: 15:12:41.468400000
- date-end: 2018-12-19
- time-end: 06:02:02.441800000
- obs_id: A05_198T01_9000002578
- exposure: 75384.762654
- 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_9000002578cztM0_level2_bc.evt
| modeM0/AS1A05_198T01_9000002578cztM0_level2_quad_clean.evt
|
Size (bytes) | 4,381,323,840 | 1,562,448,960 |
Size | 4.1 GB
| 1.5 GB
|
Events in quadrant A | 32,259,469 | 9,830,548 |
Events in quadrant B | 29,043,377 | 10,064,677 |
Events in quadrant C | 26,117,417 | 9,597,590 |
Events in quadrant D | 36,902,777 | 9,416,172 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 278407 | 0 |
B | 0 | 269641 | 0 |
C | 0 | 256273 | 0 |
D | 0 | 296525 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 173 | 0 |
B | 0 | 173 | 0 |
C | 0 | 173 | 0 |
D | 0 | 173 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2498 | 0 |
B | 0 | 2498 | 0 |
C | 0 | 2498 | 0 |
D | 0 | 2498 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 122852 | 3648 | 2.969427% |
B | 122852 | 2046 | 1.665419% |
C | 122852 | 1873 | 1.524599% |
D | 122852 | 3047 | 2.480220% |
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 | 139762 | 122845 | 1269 | 1269 | 0.91% | 1.03% |  |
B | 139762 | 122846 | 17 | 17 | 0.01% | 0.01% |  |
C | 139762 | 122853 | 1 | 1 | 0.00% | 0.00% |  |
D | 139762 | 122852 | 429 | 429 | 0.31% | 0.35% |  |
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 | 10 | 253 | 7291210 | 5308.4 | 6366 | 6242 | 1372.3 |
A | 4 | 2 | 136449 | 94.88 | 6366 | 6242 | 1372.3 |
A | 14 | 238 | 109621 | 75.33 | 6366 | 6242 | 1372.3 |
B | 7 | 220 | 827101 | 675.64 | 6470 | 6301 | 1214.9 |
B | 0 | 219 | 745013 | 608.07 | 6470 | 6301 | 1214.9 |
B | 15 | 35 | 479953 | 389.88 | 6470 | 6301 | 1214.9 |
C | 5 | 218 | 1598009 | 1117.4 | 6122 | 6083 | 1424.7 |
C | 3 | 233 | 486281 | 337.06 | 6122 | 6083 | 1424.7 |
C | 5 | 219 | 380184 | 262.59 | 6122 | 6083 | 1424.7 |
D | 13 | 232 | 3705294 | 2531.67 | 6277 | 6046 | 1461.2 |
D | 11 | 176 | 2159575 | 1473.82 | 6277 | 6046 | 1461.2 |
D | 1 | 52 | 1454653 | 991.39 | 6277 | 6046 | 1461.2 |
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 |  |