ASTROSAT CZTI

Data Quality Report

Orbit 05234

Creation date: 2024-06-27T14:52:52.728573
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

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/AS1C01_015T01_9000000668_05234cztM0_level2.evt modeM0/AS1C01_015T01_9000000668_05234cztM0_level2_quad_clean.evt
Size (bytes)728,398,08084,689,280
Size694.7 MB 80.8 MB
Events in quadrant A3,522,735539,204
Events in quadrant B3,556,024540,867
Events in quadrant C3,551,974532,585
Events in quadrant D10,916,467424,689

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156672
B0156302
C0156902
D03757112

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75631151.520561%
B75631081.428005%
C7563981.295782%
D7561258334.162148%

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 21523 7565 12 12 0.06% 0.16%
B 21523 7565 0 0 0.00% 0.00%
C 21523 7565 0 0 0.00% 0.00%
D 21522 7564 2238 2238 10.40% 29.59%

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 0 247 51124 270.19 901 878 186.0
A 0 226 13298 66.79 901 878 186.0
A 12 194 8933 43.31 901 878 186.0
B 12 111 17156 91.03 912 888 178.7
B 11 111 13701 71.69 912 888 178.7
B 0 219 9884 50.34 912 888 178.7
C 1 16 86201 413.35 882 886 206.4
C 12 4 16483 75.57 882 886 206.4
C 14 67 8772 38.21 882 886 206.4
D 11 145 5430953 29350.18 752 729 185.0
D 2 206 1007683 5442.55 752 729 185.0
D 12 212 717028 3871.57 752 729 185.0

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