ASTROSAT CZTI

Data Quality Report

Orbit 06445

Creation date: 2024-06-27T15:07:20.075080
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/AS1A02_191T01_9000000854_06445cztM0_level2.evt modeM0/AS1A02_191T01_9000000854_06445cztM0_level2_quad_clean.evt
Size (bytes)505,704,960104,028,480
Size482.3 MB 99.2 MB
Events in quadrant A3,507,087662,100
Events in quadrant B3,778,672678,157
Events in quadrant C3,396,307651,973
Events in quadrant D4,109,101621,858

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158511
B0164520
C0158190
D0173530

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77101511.958495%
B77101952.529183%
C77101221.582361%
D77101642.127108%

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 7710 7710 0 0 0.00% 0.00%
B 7710 7710 11 11 0.14% 0.14%
C 7710 7710 0 0 0.00% 0.00%
D 7710 7710 25 25 0.32% 0.32%

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 10 133 15726 80.6 901 879 184.2
A 13 14 10287 51.07 901 879 184.2
A 12 194 8553 41.66 901 879 184.2
B 3 220 96689 553.9 905 884 173.0
B 0 228 85456 488.95 905 884 173.0
B 15 204 35016 197.33 905 884 173.0
C 13 61 6967 30.33 867 868 201.1
C 10 170 4769 19.4 867 868 201.1
C 1 16 2883 10.02 867 868 201.1
D 2 152 206137 965.32 870 842 212.7
D 12 221 199422 933.74 870 842 212.7
D 2 63 172976 809.39 870 842 212.7

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