ASTROSAT CZTI

Data Quality Report

Orbit 20190712_A05_208T03_9000003026_level2

Creation date: 2019-07-15T11:13:22.528446
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A05_208T03_9000003026cztM0_level2_bc.evt modeM0/AS1A05_208T03_9000003026cztM0_level2_quad_clean.evt
Size (bytes)4,261,245,1201,257,958,080
Size4.0 GB 1.2 GB
Events in quadrant A23,377,2358,110,630
Events in quadrant B24,855,7358,199,144
Events in quadrant C19,834,4587,905,430
Events in quadrant D54,462,0977,313,373

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02103070
B02169140
C01994040
D03117130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019520
B019520
C019520
D019520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9590420372.123999%
B9590521132.203222%
C9590515941.662061%
D9590577148.043376%

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 108780 95893 107 107 0.10% 0.11%
B 108780 95896 26 26 0.02% 0.03%
C 108780 95893 0 0 0.00% 0.00%
D 108779 95888 1545 1545 1.42% 1.61%

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 14 111 2336851 2162.81 4971 4880 1078.2
A 5 16 1000649 923.54 4971 4880 1078.2
A 9 143 731791 674.18 4971 4880 1078.2
B 0 189 1716111 1803.68 5042 4924 948.7
B 0 197 942599 988.36 5042 4924 948.7
B 7 220 876274 918.45 5042 4924 948.7
C 3 233 537131 459.99 4855 4833 1157.2
C 3 9 308946 262.8 4855 4833 1157.2
C 9 221 202627 170.93 4855 4833 1157.2
D 1 52 21070379 18619.29 4796 4628 1131.4
D 7 38 3995222 3527.15 4796 4628 1131.4
D 5 222 3536707 3121.88 4796 4628 1131.4

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