ASTROSAT CZTI

Data Quality Report

Orbit 08086

Creation date: 2024-06-27T15:27:45.943518
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_055T01_9000001114_08086cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08086cztM0_level2_quad_clean.evt
Size (bytes)448,427,52079,159,680
Size427.7 MB 75.5 MB
Events in quadrant A3,163,834482,790
Events in quadrant B3,407,193480,490
Events in quadrant C3,171,234485,833
Events in quadrant D3,379,597477,620

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138433
B0143672
C0138892
D0145182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6751630.933195%
B6751951.407199%
C6751460.681381%
D6751560.829507%

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 7716 6752 0 0 0.00% 0.00%
B 7716 6752 15 15 0.19% 0.22%
C 7716 6752 2 2 0.03% 0.03%
D 7716 6752 7 7 0.09% 0.10%

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 7830 41.72 822 802 168.5
A 12 194 7412 39.24 822 802 168.5
A 3 137 3085 13.55 822 802 168.5
B 0 231 137936 869.36 819 798 157.7
B 11 51 44742 278.57 819 798 157.7
B 10 16 20284 123.53 819 798 157.7
C 1 16 49873 265.53 795 796 184.8
C 9 68 10299 51.42 795 796 184.8
C 1 3 9086 44.85 795 796 184.8
D 1 52 269037 1323.87 796 776 202.6
D 2 33 42529 206.05 796 776 202.6
D 2 234 23061 109.98 796 776 202.6

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