Observation information
- date-obs: 2018-09-12
- time-obs: 13:44:51.273200000
- date-end: 2018-09-12
- time-end: 23:05:47.258800000
- obs_id: T02_090T01_9000002360
- exposure: 17309.1050884
- 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_9000002360cztM0_level2_bc.evt
| modeM0/AS1T02_090T01_9000002360cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,020,911,040 | 404,328,960 |
Size | 973.6 MB
| 385.6 MB
|
Events in quadrant A | 6,461,790 | 2,650,025 |
Events in quadrant B | 8,492,733 | 2,649,320 |
Events in quadrant C | 7,139,651 | 2,578,024 |
Events in quadrant D | 7,000,832 | 2,534,439 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 70 | 0 |
B | 0 | 70 | 0 |
C | 0 | 70 | 0 |
D | 0 | 70 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 57983 | 0 |
B | 0 | 67170 | 0 |
C | 0 | 61484 | 0 |
D | 0 | 60014 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 544 | 0 |
B | 0 | 544 | 0 |
C | 0 | 544 | 0 |
D | 0 | 544 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 26691 | 343 | 1.285077% |
B | 26691 | 1012 | 3.791540% |
C | 26691 | 664 | 2.487730% |
D | 26691 | 382 | 1.431194% |
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 | 32556 | 26688 | 1 | 1 | 0.00% | 0.00% |  |
B | 32556 | 26686 | 42 | 42 | 0.13% | 0.16% |  |
C | 32556 | 26688 | 38 | 38 | 0.12% | 0.14% |  |
D | 32556 | 26688 | 4 | 4 | 0.01% | 0.01% |  |
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 | 239 | 114269 | 316.67 | 1616 | 1586 | 355.8 |
A | 9 | 143 | 55272 | 150.87 | 1616 | 1586 | 355.8 |
A | 13 | 210 | 36508 | 98.14 | 1616 | 1586 | 355.8 |
B | 10 | 245 | 731977 | 2399.54 | 1615 | 1589 | 304.4 |
B | 7 | 220 | 609345 | 1996.66 | 1615 | 1589 | 304.4 |
B | 4 | 173 | 144161 | 468.39 | 1615 | 1589 | 304.4 |
C | 9 | 236 | 639161 | 1742.55 | 1566 | 1575 | 365.9 |
C | 0 | 207 | 230689 | 626.18 | 1566 | 1575 | 365.9 |
C | 3 | 233 | 216637 | 587.77 | 1566 | 1575 | 365.9 |
D | 2 | 152 | 256699 | 690.45 | 1600 | 1552 | 369.5 |
D | 12 | 218 | 186928 | 501.65 | 1600 | 1552 | 369.5 |
D | 9 | 85 | 129742 | 346.9 | 1600 | 1552 | 369.5 |
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 |  |