ASTROSAT CZTI

Data Quality Report

Orbit 08354

Creation date: 2024-06-27T15:31:30.908875
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/AS1A03_009T01_9000001160_08354cztM0_level2.evt modeM0/AS1A03_009T01_9000001160_08354cztM0_level2_quad_clean.evt
Size (bytes)605,355,84072,276,480
Size577.3 MB 68.9 MB
Events in quadrant A4,310,071445,217
Events in quadrant B3,621,057457,637
Events in quadrant C3,330,513439,676
Events in quadrant D6,582,958343,686

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175943
B0153452
C0148762
D0243292

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72043424.747363%
B72041452.012771%
C7204941.304831%
D7204119116.532482%

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 7879 7204 122 122 1.55% 1.69%
B 7879 7205 3 3 0.04% 0.04%
C 7879 7205 0 0 0.00% 0.00%
D 7879 7205 961 961 12.20% 13.34%

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 15 239 793646 4494.41 863 845 176.4
A 15 236 157172 886.22 863 845 176.4
A 1 162 16466 88.56 863 845 176.4
B 0 214 143981 859.13 878 855 166.6
B 4 173 18890 108.25 878 855 166.6
B 12 111 17796 101.69 878 855 166.6
C 13 61 6506 28.58 851 856 197.7
C 8 128 5304 22.5 851 856 197.7
C 8 112 2925 10.46 851 856 197.7
D 1 52 2750573 13542.39 786 766 203.1
D 2 152 302036 1483.71 786 766 203.1
D 2 14 294875 1448.44 786 766 203.1

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