Observation information
- date-obs: 2022-02-19
- time-obs: 20:43:34.503600000
- date-end: 2022-02-21
- time-end: 07:40:44.523800000
- obs_id: C07_014T01_9000004950
- exposure: 54363.762647
- sourceid: Crab
- observer: arrao
- ra_pnt: 83.63321
- dec_pnt: 22.01446
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C07_014T01_9000004950cztM0_level2_bc.evt
| modeM0/AS1C07_014T01_9000004950cztM0_level2_quad_clean.evt
|
Size (bytes) | 5,617,154,880 | 1,269,889,920 |
Size | 5.2 GB
| 1.2 GB
|
Events in quadrant A | 22,180,595 | 8,408,064 |
Events in quadrant B | 35,531,421 | 8,225,187 |
Events in quadrant C | 26,078,795 | 8,276,261 |
Events in quadrant D | 80,095,341 | 7,252,436 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1874 | 0 |
B | 0 | 1874 | 0 |
C | 0 | 1874 | 0 |
D | 0 | 1874 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 342 | 0 |
B | 0 | 342 | 0 |
C | 0 | 342 | 0 |
D | 0 | 342 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 194688 | 0 |
B | 0 | 255105 | 0 |
C | 0 | 201327 | 0 |
D | 0 | 388421 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 91927 | 521 | 0.566754% |
B | 91927 | 6490 | 7.059950% |
C | 91927 | 486 | 0.528680% |
D | 91927 | 9953 | 10.827069% |
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 | 125831 | 91940 | 67 | 67 | 0.05% | 0.07% |  |
B | 125831 | 91928 | 458 | 458 | 0.36% | 0.50% |  |
C | 125831 | 91927 | 79 | 79 | 0.06% | 0.09% |  |
D | 125831 | 91922 | 2721 | 2721 | 2.16% | 2.96% |  |
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 | 169 | 958030 | 823.12 | 5202 | 5141 | 1157.7 |
A | 10 | 83 | 497565 | 425.36 | 5202 | 5141 | 1157.7 |
A | 9 | 143 | 343449 | 292.24 | 5202 | 5141 | 1157.7 |
B | 5 | 172 | 11739286 | 11501.0 | 5095 | 5032 | 1020.3 |
B | 0 | 189 | 1000515 | 975.69 | 5095 | 5032 | 1020.3 |
B | 5 | 255 | 857714 | 835.73 | 5095 | 5032 | 1020.3 |
C | 15 | 214 | 3655635 | 3110.25 | 5059 | 5070 | 1173.7 |
C | 0 | 10 | 897849 | 760.64 | 5059 | 5070 | 1173.7 |
C | 14 | 67 | 735346 | 622.19 | 5059 | 5070 | 1173.7 |
D | 8 | 195 | 42221788 | 33206.57 | 4828 | 4732 | 1271.3 |
D | 7 | 38 | 3589101 | 2819.35 | 4828 | 4732 | 1271.3 |
D | 7 | 223 | 2661495 | 2089.72 | 4828 | 4732 | 1271.3 |
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 |  |