ASTROSAT CZTI

Data Quality Report

Orbit 07066

Creation date: 2024-06-27T15:15:09.961212
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_155T01_9000000966_07066cztM0_level2.evt modeM0/AS1A02_155T01_9000000966_07066cztM0_level2_quad_clean.evt
Size (bytes)513,760,32079,021,440
Size490.0 MB 75.4 MB
Events in quadrant A3,326,159478,378
Events in quadrant B4,091,678486,336
Events in quadrant C3,888,288475,123
Events in quadrant D3,771,410458,779

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146623
B0167432
C0165292
D0153292

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70831662.343640%
B70832894.080192%
C70832393.374276%
D70831381.948327%

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 7738 7084 0 0 0.00% 0.00%
B 7738 7084 113 113 1.46% 1.60%
C 7738 7084 103 103 1.33% 1.45%
D 7738 7084 9 9 0.12% 0.13%

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 8 15 30666 171.08 852 833 174.4
A 0 226 8135 41.87 852 833 174.4
A 12 194 7725 39.52 852 833 174.4
B 4 239 671996 4092.05 851 830 164.0
B 0 214 98933 598.12 851 830 164.0
B 4 80 15812 91.34 851 830 164.0
C 9 68 583265 3019.55 828 834 192.9
C 4 254 39270 199.27 828 834 192.9
C 9 52 12567 60.83 828 834 192.9
D 8 195 457572 2211.72 836 807 206.5
D 12 233 37502 177.68 836 807 206.5
D 2 14 30807 145.26 836 807 206.5

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