ASTROSAT CZTI

Data Quality Report

Orbit 29100

Creation date: 2024-06-27T20:00:12.181493
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/AS1A10_063T01_9000004182_29100cztM0_level2.evt modeM0/AS1A10_063T01_9000004182_29100cztM0_level2_quad_clean.evt
Size (bytes)730,555,200108,547,200
Size696.7 MB 103.5 MB
Events in quadrant A3,744,238706,143
Events in quadrant B4,168,205716,442
Events in quadrant C3,944,211693,681
Events in quadrant D9,739,984627,262

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162471
B0175341
C0166631
D0344212

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78102262.893726%
B78103244.148528%
C78112623.354244%
D7810158020.230474%

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 7840 7811 0 0 0.00% 0.00%
B 7840 7811 54 54 0.69% 0.69%
C 7841 7812 0 0 0.00% 0.00%
D 7840 7811 1183 1183 15.09% 15.15%

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 6 16 18660 90.81 959 937 195.2
A 1 113 16250 78.46 959 937 195.2
A 13 254 13292 63.31 959 937 195.2
B 10 245 346630 1890.33 947 925 182.9
B 10 246 84804 458.65 947 925 182.9
B 12 111 23024 120.84 947 925 182.9
C 3 233 205148 945.97 915 919 215.9
C 14 238 145511 669.73 915 919 215.9
C 2 114 18525 81.55 915 919 215.9
D 1 52 3260740 15944.33 852 828 204.5
D 8 195 2880204 14083.12 852 828 204.5
D 12 233 265890 1296.43 852 828 204.5

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