ASTROSAT CZTI

Data Quality Report

Orbit 08340

Creation date: 2024-06-27T15:31:20.174459
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/AS1G07_029T01_9000001158_08340cztM0_level2.evt modeM0/AS1G07_029T01_9000001158_08340cztM0_level2_quad_clean.evt
Size (bytes)500,708,16090,757,440
Size477.5 MB 86.6 MB
Events in quadrant A3,669,875564,523
Events in quadrant B3,689,561569,159
Events in quadrant C3,614,536557,018
Events in quadrant D3,684,883540,578

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158583
B0157642
C0158272
D0161362

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74323664.924650%
B74322843.821313%
C74322363.175457%
D74322423.256189%

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 8707 7433 37 37 0.42% 0.50%
B 8707 7434 5 5 0.06% 0.07%
C 8707 7433 0 0 0.00% 0.00%
D 8707 7433 3 3 0.03% 0.04%

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 15 236 163457 867.98 912 891 187.3
A 0 226 8375 39.96 912 891 187.3
A 12 194 8181 38.92 912 891 187.3
B 0 214 84927 476.91 914 892 176.2
B 4 80 21020 114.23 914 892 176.2
B 12 111 19983 108.34 914 892 176.2
C 9 54 131772 629.59 893 895 207.9
C 13 61 6688 27.87 893 895 207.9
C 3 202 2287 6.69 893 895 207.9
D 12 221 131937 609.76 890 865 215.0
D 1 7 55624 254.74 890 865 215.0
D 13 105 32848 148.79 890 865 215.0

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