ASTROSAT CZTI

Data Quality Report

Orbit 29993

Creation date: 2024-06-27T20:09:32.931312
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_071T05_9000004308_29993cztM0_level2.evt modeM0/AS1A10_071T05_9000004308_29993cztM0_level2_quad_clean.evt
Size (bytes)610,744,32092,410,560
Size582.5 MB 88.1 MB
Events in quadrant A3,875,961603,495
Events in quadrant B5,692,267595,755
Events in quadrant C3,815,798568,977
Events in quadrant D4,654,484558,002

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156672
B0212022
C0153162
D0180232

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67611802.662328%
B67622874.244306%
C67622123.135167%
D67622633.889382%

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 9391 6763 3 3 0.03% 0.04%
B 9392 6763 1 1 0.01% 0.01%
C 9392 6764 0 0 0.00% 0.00%
D 9392 6763 134 134 1.43% 1.98%

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 8 192 24012 117.18 995 979 196.6
A 3 1 20599 99.82 995 979 196.6
A 13 254 11262 52.32 995 979 196.6
B 6 159 1869974 10238.74 968 946 182.5
B 12 111 22414 117.6 968 946 182.5
B 11 111 20463 106.92 968 946 182.5
C 14 238 155795 712.83 931 940 217.2
C 2 114 15836 68.57 931 940 217.2
C 3 233 9357 38.75 931 940 217.2
D 7 80 993679 4109.39 933 916 241.6
D 13 138 60515 246.7 933 916 241.6
D 8 195 44096 178.74 933 916 241.6

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