ASTROSAT CZTI

Data Quality Report

Orbit 09745

Creation date: 2024-06-27T15:50:09.485748
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/AS1A03_114T01_9000001390_09745cztM0_level2.evt modeM0/AS1A03_114T01_9000001390_09745cztM0_level2_quad_clean.evt
Size (bytes)540,910,08084,147,840
Size515.9 MB 80.2 MB
Events in quadrant A3,927,541498,538
Events in quadrant B3,978,750509,482
Events in quadrant C3,903,239493,185
Events in quadrant D4,015,872478,672

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172547
B0172884
C0172804
D0177769

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81814625.647231%
B81824745.793205%
C81824155.072110%
D81794315.269593%

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 8674 8186 0 0 0.00% 0.00%
B 8674 8186 0 0 0.00% 0.00%
C 8674 8186 1 1 0.01% 0.01%
D 8674 8186 30 30 0.35% 0.37%

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 0 226 9387 39.86 1020 996 210.5
A 12 194 8211 34.27 1020 996 210.5
A 3 137 5216 20.04 1020 996 210.5
B 12 111 24528 119.09 1017 989 197.6
B 11 111 20017 96.27 1017 989 197.6
B 14 111 16083 76.37 1017 989 197.6
C 8 128 7560 28.13 995 996 233.3
C 13 61 7477 27.78 995 996 233.3
C 14 234 6271 22.61 995 996 233.3
D 1 52 192520 748.41 983 956 256.0
D 13 137 39753 151.57 983 956 256.0
D 2 234 27004 101.77 983 956 256.0

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