ASTROSAT CZTI

Data Quality Report

Orbit 16533

Creation date: 2024-06-27T17:24:04.233641
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/AS1T03_018T01_9000002442_16533cztM0_level2.evt modeM0/AS1T03_018T01_9000002442_16533cztM0_level2_quad_clean.evt
Size (bytes)543,430,08083,079,360
Size518.3 MB 79.2 MB
Events in quadrant A3,837,434498,351
Events in quadrant B4,324,287506,364
Events in quadrant C3,922,882500,141
Events in quadrant D3,859,984484,530

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162563
B0176992
C0162642
D0168052

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75591762.328350%
B75592583.413150%
C75592313.055960%
D75591752.315121%

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 8910 7560 8 8 0.09% 0.11%
B 8910 7560 19 19 0.21% 0.25%
C 8910 7560 0 0 0.00% 0.00%
D 8910 7560 44 44 0.49% 0.58%

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 15 174 134671 696.89 942 922 191.9
A 3 1 72844 374.74 942 922 191.9
A 0 226 8309 38.49 942 922 191.9
B 15 35 337466 1822.0 947 921 184.7
B 7 220 45326 240.4 947 921 184.7
B 3 209 42980 227.7 947 921 184.7
C 7 247 144046 660.5 910 916 216.7
C 14 238 137023 628.09 910 916 216.7
C 3 233 93512 427.3 910 916 216.7
D 1 52 125657 553.47 917 888 225.4
D 10 70 122485 539.4 917 888 225.4
D 7 38 100197 440.53 917 888 225.4

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