Observation information
- date-obs: 2020-08-19
- time-obs: 20:04:51.401600000
- date-end: 2020-08-21
- time-end: 05:27:57.357800000
- obs_id: A09_104T02_9000003826
- exposure: 61413.4378141
- sourceid: PSR J1813-1246
- observer: Anusree
- ra_pnt: 273.349
- dec_pnt: -12.76695
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A09_104T02_9000003826cztM0_level2_bc.evt
| modeM0/AS1A09_104T02_9000003826cztM0_level2_quad_clean.evt
|
Size (bytes) | 4,763,957,760 | 1,359,120,960 |
Size | 4.4 GB
| 1.3 GB
|
Events in quadrant A | 22,487,407 | 8,958,335 |
Events in quadrant B | 23,209,177 | 9,071,049 |
Events in quadrant C | 26,671,695 | 8,557,585 |
Events in quadrant D | 64,808,490 | 7,426,931 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2122 | 0 |
B | 0 | 2122 | 0 |
C | 0 | 2018 | 0 |
D | 0 | 2122 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 219357 | 0 |
B | 0 | 221604 | 0 |
C | 0 | 237563 | 0 |
D | 0 | 385648 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 161 | 0 |
B | 0 | 161 | 0 |
C | 0 | 161 | 0 |
D | 0 | 161 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 104401 | 1087 | 1.041178% |
B | 104401 | 1456 | 1.394623% |
C | 104401 | 2769 | 2.652273% |
D | 104401 | 18437 | 17.659793% |
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 | 120187 | 104399 | 2 | 2 | 0.00% | 0.00% |  |
B | 120187 | 104393 | 10 | 10 | 0.01% | 0.01% |  |
C | 120187 | 104399 | 77 | 77 | 0.06% | 0.07% |  |
D | 120187 | 104394 | 5039 | 5039 | 4.19% | 4.83% |  |
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 | 6 | 16 | 214100 | 168.0 | 5765 | 5661 | 1240.7 |
A | 13 | 254 | 158755 | 123.39 | 5765 | 5661 | 1240.7 |
A | 0 | 226 | 36817 | 25.11 | 5765 | 5661 | 1240.7 |
B | 0 | 190 | 234380 | 209.66 | 5802 | 5654 | 1090.9 |
B | 5 | 172 | 209655 | 187.0 | 5802 | 5654 | 1090.9 |
B | 0 | 230 | 149255 | 131.63 | 5802 | 5654 | 1090.9 |
C | 2 | 16 | 2682351 | 2097.02 | 5479 | 5471 | 1276.5 |
C | 3 | 233 | 2143035 | 1674.53 | 5479 | 5471 | 1276.5 |
C | 4 | 254 | 688295 | 534.91 | 5479 | 5471 | 1276.5 |
D | 7 | 80 | 27646449 | 23605.95 | 5095 | 4958 | 1171.0 |
D | 1 | 52 | 12456492 | 10633.66 | 5095 | 4958 | 1171.0 |
D | 12 | 233 | 2707406 | 2307.9 | 5095 | 4958 | 1171.0 |
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 |  |