ASTROSAT CZTI

Data Quality Report

Orbit 05546

Creation date: 2024-06-27T14:56:34.537287
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/AS1G06_084T01_9000000710_05546cztM0_level2.evt modeM0/AS1G06_084T01_9000000710_05546cztM0_level2_quad_clean.evt
Size (bytes)151,850,88034,058,880
Size144.8 MB 32.5 MB
Events in quadrant A972,158220,328
Events in quadrant B1,089,462220,300
Events in quadrant C961,318224,884
Events in quadrant D1,431,298213,969

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043181
B046101
C043381
D056851

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2082371.777137%
B2082572.737752%
C2082251.200768%
D2082713.410183%

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 3137 2083 0 0 0.00% 0.00%
B 3137 2083 5 5 0.16% 0.24%
C 3137 2083 0 0 0.00% 0.00%
D 3137 2083 32 32 1.02% 1.54%

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 2620 44.16 252 246 53.8
A 12 194 2583 43.47 252 246 53.8
A 0 50 748 9.34 252 246 53.8
B 15 204 72277 1424.39 250 244 50.6
B 10 246 12703 246.37 250 244 50.6
B 4 48 12361 239.6 250 244 50.6
C 1 16 13426 230.62 241 242 57.2
C 9 16 7114 120.21 241 242 57.2
C 13 61 1979 30.38 241 242 57.2
D 2 63 265901 4276.06 242 234 62.1
D 2 152 140246 2253.57 242 234 62.1
D 8 195 42206 675.56 242 234 62.1

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