Observation information
- date-obs: 2018-09-13
- time-obs: 08:33:55.240600000
- date-end: 2018-09-13
- time-end: 23:29:17.211200000
- obs_id: T02_090T01_9000002364
- exposure: 27794.7409702
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T02_090T01_9000002364cztM0_level2_bc.evt
| modeM0/AS1T02_090T01_9000002364cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,588,792,320 | 649,094,400 |
Size | 1.5 GB
| 619.0 MB
|
Events in quadrant A | 10,428,249 | 4,234,626 |
Events in quadrant B | 11,459,040 | 4,260,138 |
Events in quadrant C | 10,705,509 | 4,117,219 |
Events in quadrant D | 12,516,539 | 4,023,203 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 94925 | 0 |
B | 0 | 99501 | 0 |
C | 0 | 96851 | 0 |
D | 0 | 102515 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 97 | 0 |
B | 0 | 97 | 0 |
C | 0 | 97 | 0 |
D | 0 | 97 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 898 | 0 |
B | 0 | 898 | 0 |
C | 0 | 898 | 0 |
D | 0 | 898 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 44093 | 630 | 1.428798% |
B | 44093 | 916 | 2.077427% |
C | 44093 | 851 | 1.930012% |
D | 44093 | 1130 | 2.562765% |
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 | 53724 | 44089 | 4 | 4 | 0.01% | 0.01% |  |
B | 53724 | 44089 | 13 | 13 | 0.02% | 0.03% |  |
C | 53724 | 44089 | 2 | 2 | 0.00% | 0.00% |  |
D | 53724 | 44088 | 69 | 69 | 0.13% | 0.16% |  |
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 | 157 | 148776 | 253.44 | 2597 | 2542 | 577.0 |
A | 14 | 235 | 99259 | 167.62 | 2597 | 2542 | 577.0 |
A | 10 | 253 | 63555 | 105.74 | 2597 | 2542 | 577.0 |
B | 7 | 220 | 324610 | 652.78 | 2610 | 2562 | 493.3 |
B | 5 | 65 | 294343 | 591.43 | 2610 | 2562 | 493.3 |
B | 10 | 245 | 148850 | 296.52 | 2610 | 2562 | 493.3 |
C | 3 | 233 | 981438 | 1652.92 | 2510 | 2527 | 592.2 |
C | 0 | 207 | 33876 | 52.93 | 2510 | 2527 | 592.2 |
C | 9 | 54 | 22282 | 33.36 | 2510 | 2527 | 592.2 |
D | 12 | 218 | 1994201 | 3273.82 | 2558 | 2470 | 608.4 |
D | 2 | 152 | 211434 | 343.48 | 2558 | 2470 | 608.4 |
D | 2 | 234 | 171342 | 277.58 | 2558 | 2470 | 608.4 |
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 |  |