ASTROSAT CZTI

Data Quality Report

Orbit 29294

Creation date: 2024-06-27T20:02:27.593048
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_050T01_9000004212_29294cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29294cztM0_level2_quad_clean.evt
Size (bytes)1,284,909,12083,318,400
Size1.2 GB 79.5 MB
Events in quadrant A3,984,637537,644
Events in quadrant B4,113,041550,458
Events in quadrant C17,782,991380,032
Events in quadrant D12,480,198481,720

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169672
B0173402
C0584142
D0428152

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8226470.571359%
B8227720.875167%
C8227668081.196062%
D8227242029.415340%

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 10216 8228 0 0 0.00% 0.00%
B 10217 8229 7 7 0.07% 0.09%
C 10217 8229 5629 5629 55.09% 68.40%
D 10217 8229 1999 1999 19.57% 24.29%

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 13 254 17017 77.57 1031 1011 206.3
A 3 137 9576 41.51 1031 1011 206.3
A 0 226 8783 37.67 1031 1011 206.3
B 10 245 24163 119.13 1022 994 194.5
B 12 111 23249 114.43 1022 994 194.5
B 11 111 20820 101.94 1022 994 194.5
C 3 233 14992308 96207.97 669 672 155.8
C 14 238 122839 784.0 669 672 155.8
C 14 254 34991 220.24 669 672 155.8
D 1 52 5042426 23368.54 902 879 215.7
D 8 195 1530542 7090.28 902 879 215.7
D 12 233 1302160 6031.69 902 879 215.7

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