ASTROSAT CZTI

Data Quality Report

Orbit 09624

Creation date: 2024-06-27T15:48:34.495735
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_033T01_9000001368_09624cztM0_level2.evt modeM0/AS1A03_033T01_9000001368_09624cztM0_level2_quad_clean.evt
Size (bytes)117,187,20032,253,120
Size111.8 MB 30.8 MB
Events in quadrant A746,017222,964
Events in quadrant B743,331225,644
Events in quadrant C705,969217,386
Events in quadrant D1,253,719204,010

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030212
B030271
C029651
D046451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1433221.535241%
B1433281.953943%
C1433171.186322%
D14331127.815771%

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 1433 1433 0 0 0.00% 0.00%
B 1433 1433 0 0 0.00% 0.00%
C 1433 1433 0 0 0.00% 0.00%
D 1433 1433 130 130 9.07% 9.07%

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 1819 39.7 193 190 41.0
A 12 194 1559 33.36 193 190 41.0
A 3 1 1454 30.8 193 190 41.0
B 12 111 3950 99.61 191 187 37.8
B 11 111 3135 78.04 191 187 37.8
B 14 111 2560 62.82 191 187 37.8
C 14 128 1769 37.31 180 181 42.6
C 13 61 1313 26.59 180 181 42.6
C 14 67 758 13.56 180 181 42.6
D 1 52 416000 8811.74 176 172 47.2
D 8 195 78317 1655.96 176 172 47.2
D 10 199 40256 849.41 176 172 47.2

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