Observation information
- date-obs: 2019-06-15
- time-obs: 08:43:09.859000000
- date-end: 2019-06-21
- time-end: 15:46:02.713400000
- obs_id: A05_180T01_9000002992
- exposure: 258929.773678
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A05_180T01_9000002992cztM0_level2_bc.evt
| modeM0/AS1A05_180T01_9000002992cztM0_level2_quad_clean.evt
|
Size (bytes) | 18,573,327,360 | 6,096,358,080 |
Size | 17.3 GB
| 5.7 GB
|
Events in quadrant A | 131,326,950 | 38,803,588 |
Events in quadrant B | 133,450,334 | 40,201,184 |
Events in quadrant C | 102,791,779 | 38,868,927 |
Events in quadrant D | 166,001,585 | 37,659,273 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 709 | 0 |
B | 0 | 709 | 0 |
C | 0 | 709 | 0 |
D | 0 | 709 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1116323 | 0 |
B | 0 | 1036290 | 0 |
C | 0 | 930373 | 0 |
D | 0 | 1152505 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8666 | 0 |
B | 0 | 8666 | 0 |
C | 0 | 8666 | 0 |
D | 0 | 8666 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 425212 | 34207 | 8.044693% |
B | 425213 | 18207 | 4.281854% |
C | 425213 | 8582 | 2.018283% |
D | 425213 | 25941 | 6.100707% |
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 | 543476 | 425133 | 539 | 539 | 0.10% | 0.13% |  |
B | 543476 | 425213 | 2241 | 2241 | 0.41% | 0.53% |  |
C | 543476 | 425224 | 58 | 58 | 0.01% | 0.01% |  |
D | 543476 | 425207 | 5635 | 5635 | 1.04% | 1.33% |  |
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 | 14 | 238 | 32595558 | 6120.66 | 24163 | 23794 | 5321.6 |
A | 14 | 254 | 4158874 | 777.04 | 24163 | 23794 | 5321.6 |
A | 15 | 192 | 428216 | 76.0 | 24163 | 23794 | 5321.6 |
B | 10 | 245 | 32925262 | 6952.34 | 24704 | 24308 | 4732.4 |
B | 4 | 80 | 1616838 | 336.52 | 24704 | 24308 | 4732.4 |
B | 0 | 198 | 1039136 | 214.44 | 24704 | 24308 | 4732.4 |
C | 3 | 233 | 9225741 | 1647.47 | 23692 | 23801 | 5585.5 |
C | 4 | 254 | 1986108 | 351.32 | 23692 | 23801 | 5585.5 |
C | 8 | 208 | 348599 | 58.15 | 23692 | 23801 | 5585.5 |
D | 1 | 52 | 53007081 | 9341.87 | 24016 | 23294 | 5671.6 |
D | 7 | 238 | 6569252 | 1154.15 | 24016 | 23294 | 5671.6 |
D | 12 | 218 | 3841192 | 673.16 | 24016 | 23294 | 5671.6 |
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 |  |