Observation information
- date-obs: 2020-08-29
- time-obs: 20:09:03.148800000
- date-end: 2020-09-06
- time-end: 00:25:00.640800000
- obs_id: A09_145T01_9000003848
- exposure: 290189.409036
- sourceid: Crab
- observer: aarthy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A09_145T01_9000003848cztM0_level2_bc.evt
| modeM0/AS1A09_145T01_9000003848cztM0_level2_quad_clean.evt
|
Size (bytes) | 23,118,664,320 | 6,877,503,360 |
Size | 21.5 GB
| 6.4 GB
|
Events in quadrant A | 125,452,269 | 45,399,632 |
Events in quadrant B | 150,563,094 | 45,161,274 |
Events in quadrant C | 121,901,356 | 43,693,761 |
Events in quadrant D | 268,924,354 | 40,498,224 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1076437 | 0 |
B | 0 | 1204143 | 0 |
C | 0 | 1088486 | 0 |
D | 0 | 1660368 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 766 | 0 |
B | 0 | 766 | 0 |
C | 0 | 766 | 0 |
D | 0 | 766 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 9988 | 0 |
B | 0 | 9992 | 0 |
C | 0 | 9990 | 0 |
D | 0 | 9986 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 490119 | 6419 | 1.309682% |
B | 490178 | 17999 | 3.671931% |
C | 490183 | 10529 | 2.147973% |
D | 490074 | 62460 | 12.745014% |
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 | 620159 | 490462 | 204 | 204 | 0.03% | 0.04% |  |
B | 620159 | 490459 | 1715 | 1715 | 0.28% | 0.35% |  |
C | 620159 | 490533 | 289 | 289 | 0.05% | 0.06% |  |
D | 620159 | 490083 | 12707 | 12707 | 2.05% | 2.59% |  |
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 | 13195536 | 2081.32 | 28652 | 28222 | 6326.4 |
A | 13 | 254 | 781038 | 119.0 | 28652 | 28222 | 6326.4 |
A | 13 | 170 | 622917 | 94.0 | 28652 | 28222 | 6326.4 |
B | 0 | 189 | 29010778 | 5333.62 | 28306 | 27872 | 5434.0 |
B | 10 | 245 | 4779789 | 874.48 | 28306 | 27872 | 5434.0 |
B | 3 | 112 | 2136484 | 388.04 | 28306 | 27872 | 5434.0 |
C | 3 | 233 | 7586421 | 1161.13 | 27234 | 27321 | 6510.1 |
C | 1 | 0 | 3912698 | 596.82 | 27234 | 27321 | 6510.1 |
C | 15 | 208 | 2733229 | 415.65 | 27234 | 27321 | 6510.1 |
D | 7 | 80 | 75561156 | 11052.95 | 26124 | 25419 | 6834.0 |
D | 1 | 52 | 70706217 | 10342.54 | 26124 | 25419 | 6834.0 |
D | 2 | 250 | 11036104 | 1611.17 | 26124 | 25419 | 6834.0 |
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 |  |