ASTROSAT CZTI

Data Quality Report

Orbit 28345

Creation date: 2024-06-27T19:50:44.648321
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_116T01_9000004082_28345cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28345cztM0_level2_quad_clean.evt
Size (bytes)563,538,24081,797,760
Size537.4 MB 78.0 MB
Events in quadrant A3,501,758510,175
Events in quadrant B3,419,928522,544
Events in quadrant C3,407,254497,143
Events in quadrant D6,263,340459,284

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148910
B0144960
C0144350
D0232800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7008660.941781%
B7008530.756279%
C7008901.284247%
D70085607.990868%

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 7628 7009 10 10 0.13% 0.14%
B 7628 7009 0 0 0.00% 0.00%
C 7628 7009 6 6 0.08% 0.09%
D 7628 7009 518 518 6.79% 7.39%

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 12 96 98131 564.14 858 841 172.5
A 15 174 92684 532.55 858 841 172.5
A 13 254 11519 61.92 858 841 172.5
B 12 111 20586 118.92 861 840 166.0
B 11 111 18684 107.46 861 840 166.0
B 14 111 17694 101.5 861 840 166.0
C 14 238 132496 672.28 832 835 195.8
C 10 22 27967 138.54 832 835 195.8
C 13 61 5531 23.98 832 835 195.8
D 1 52 2012224 10227.12 813 791 196.7
D 8 195 888165 4511.85 813 791 196.7
D 7 238 152160 769.64 813 791 196.7

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