ASTROSAT CZTI

Data Quality Report

Orbit 24190

Creation date: 2024-06-27T19:03:16.293156
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/AS1A07_067T01_9000003578_24190cztM0_level2.evt modeM0/AS1A07_067T01_9000003578_24190cztM0_level2_quad_clean.evt
Size (bytes)541,630,08089,565,120
Size516.5 MB 85.4 MB
Events in quadrant A3,657,851559,581
Events in quadrant B3,527,661571,471
Events in quadrant C4,574,769543,291
Events in quadrant D4,155,656537,749

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152592
B0148152
C0178142
D0166492

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71791341.866555%
B71791442.005850%
C71794115.725031%
D71781762.451936%

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 7869 7179 0 0 0.00% 0.00%
B 7869 7179 0 0 0.00% 0.00%
C 7869 7179 171 171 2.17% 2.38%
D 7868 7178 50 50 0.64% 0.70%

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 150734 824.29 908 890 181.8
A 13 254 11072 56.01 908 890 181.8
A 3 1 10205 51.24 908 890 181.8
B 12 111 20792 115.77 895 871 172.1
B 11 111 18661 103.38 895 871 172.1
B 14 111 16900 93.15 895 871 172.1
C 2 16 859689 4345.37 849 852 197.6
C 7 247 241986 1220.04 849 852 197.6
C 14 238 136398 685.81 849 852 197.6
D 7 238 416957 1974.51 876 850 210.7
D 1 52 236503 1118.22 876 850 210.7
D 8 195 185937 878.27 876 850 210.7

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