ASTROSAT CZTI

Data Quality Report

Orbit 29114

Creation date: 2024-06-27T20:00:20.596343
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_29114cztM0_level2.evt modeM0/AS1A10_063T01_9000004182_29114cztM0_level2_quad_clean.evt
Size (bytes)645,998,400119,459,520
Size616.1 MB 113.9 MB
Events in quadrant A4,069,832771,788
Events in quadrant B4,779,463778,554
Events in quadrant C4,827,243755,349
Events in quadrant D5,331,837741,883

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176542
B0195616
C0197002
D0216894

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82012763.365443%
B82015326.487014%
C82024165.071934%
D82012753.353250%

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 8241 8203 0 0 0.00% 0.00%
B 8242 8204 137 137 1.66% 1.67%
C 8242 8204 0 0 0.00% 0.00%
D 8242 8204 105 105 1.27% 1.28%

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 15 174 19271 84.63 1049 1024 215.6
A 13 254 13259 56.75 1049 1024 215.6
A 3 137 11024 46.38 1049 1024 215.6
B 10 245 600060 2945.94 1033 1005 203.3
B 0 190 87443 425.07 1033 1005 203.3
B 12 111 25935 122.6 1033 1005 203.3
C 3 233 734171 3050.97 1004 1011 240.3
C 14 238 157997 653.28 1004 1011 240.3
C 2 114 19647 77.55 1004 1011 240.3
D 1 52 846828 3483.95 1009 982 242.8
D 8 195 579883 2384.43 1009 982 242.8
D 13 104 71638 291.02 1009 982 242.8

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