Observation information
- date-obs: 2021-07-25
- time-obs: 23:08:23.156900000
- date-end: 2021-07-26
- time-end: 02:02:34.188300000
- obs_id: A10_048T04_9000004586
- exposure: 3788.56222318
- sourceid: NGC 4984
- observer: chayan
- ra_pnt: 197.2383
- dec_pnt: -15.51631
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A10_048T04_9000004586cztM0_level2_bc.evt
| modeM0/AS1A10_048T04_9000004586cztM0_level2_quad_clean.evt
|
Size (bytes) | 373,728,960 | 90,483,840 |
Size | 356.4 MB
| 86.3 MB
|
Events in quadrant A | 1,902,876 | 577,021 |
Events in quadrant B | 3,870,332 | 579,159 |
Events in quadrant C | 1,993,307 | 541,852 |
Events in quadrant D | 3,044,850 | 530,172 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16276 | 0 |
B | 0 | 22982 | 0 |
C | 0 | 17091 | 0 |
D | 0 | 19773 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 150 | 0 |
B | 0 | 150 | 0 |
C | 0 | 148 | 0 |
D | 0 | 150 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24 | 0 |
B | 0 | 24 | 0 |
C | 0 | 24 | 0 |
D | 0 | 24 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7374 | 85 | 1.152699% |
B | 7361 | 156 | 2.119277% |
C | 7366 | 299 | 4.059191% |
D | 7346 | 101 | 1.374898% |
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 | 10452 | 7409 | 1 | 1 | 0.01% | 0.01% |  |
B | 10452 | 7401 | 0 | 0 | 0.00% | 0.00% |  |
C | 10452 | 7402 | 4 | 4 | 0.04% | 0.05% |  |
D | 10452 | 7388 | 5 | 5 | 0.05% | 0.07% |  |
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 | 0 | 13 | 79815 | 793.01 | 473 | 465 | 100.1 |
A | 13 | 254 | 12339 | 118.67 | 473 | 465 | 100.1 |
A | 0 | 226 | 3018 | 25.51 | 473 | 465 | 100.1 |
B | 6 | 159 | 1914362 | 21495.2 | 476 | 467 | 89.0 |
B | 4 | 80 | 51542 | 573.63 | 476 | 467 | 89.0 |
B | 0 | 230 | 21858 | 240.25 | 476 | 467 | 89.0 |
C | 0 | 10 | 229037 | 2233.66 | 437 | 437 | 102.3 |
C | 12 | 249 | 30596 | 294.68 | 437 | 437 | 102.3 |
C | 14 | 225 | 26267 | 252.39 | 437 | 437 | 102.3 |
D | 8 | 195 | 1117762 | 11229.25 | 447 | 434 | 99.5 |
D | 2 | 250 | 101469 | 1015.41 | 447 | 434 | 99.5 |
D | 12 | 79 | 46269 | 460.65 | 447 | 434 | 99.5 |
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 |  |