ASTROSAT CZTI

Data Quality Report

Orbit 26043

Creation date: 2024-06-27T19:24:11.376245
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/AS1A09_033T02_9000003762_26043cztM0_level2.evt modeM0/AS1A09_033T02_9000003762_26043cztM0_level2_quad_clean.evt
Size (bytes)502,110,72075,329,280
Size478.9 MB 71.8 MB
Events in quadrant A3,530,969459,101
Events in quadrant B3,645,794459,880
Events in quadrant C3,454,304438,908
Events in quadrant D4,105,470440,975

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146130
B0149600
C0143240
D0166510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69191141.647637%
B69201542.225434%
C69201291.864162%
D69202113.049133%

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 7664 6920 14 14 0.18% 0.20%
B 7665 6921 36 36 0.47% 0.52%
C 7665 6921 0 0 0.00% 0.00%
D 7665 6921 138 138 1.80% 1.99%

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 13 92961 516.27 892 877 178.4
A 13 254 9527 48.5 892 877 178.4
A 3 137 8271 41.45 892 877 178.4
B 10 245 147533 884.25 873 853 165.9
B 0 190 49878 295.54 873 853 165.9
B 0 229 21447 124.15 873 853 165.9
C 14 238 137471 695.99 845 849 196.3
C 3 233 11693 55.24 845 849 196.3
C 14 225 6943 31.04 845 849 196.3
D 1 52 848092 3998.42 855 833 211.9
D 2 234 24948 113.8 855 833 211.9
D 14 226 8191 34.72 855 833 211.9

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