ASTROSAT CZTI

Data Quality Report

Orbit 29148

Creation date: 2024-06-27T20:00:49.431160
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/AS1A10_099T01_9000004184_29148cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29148cztM0_level2_quad_clean.evt
Size (bytes)512,844,48074,079,360
Size489.1 MB 70.6 MB
Events in quadrant A3,470,412448,720
Events in quadrant B3,691,810452,909
Events in quadrant C3,674,223434,238
Events in quadrant D4,226,023425,650

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145952
B0152032
C0150062
D0169022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6920640.924855%
B6919841.214048%
C69191802.601532%
D69191371.980055%

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 7960 6921 0 0 0.00% 0.00%
B 7959 6920 4 4 0.05% 0.06%
C 7959 6920 0 0 0.00% 0.00%
D 7959 6920 99 99 1.24% 1.43%

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 13 254 12679 65.3 899 881 180.7
A 3 137 8623 42.85 899 881 180.7
A 0 226 7554 36.94 899 881 180.7
B 10 246 72319 418.75 884 863 170.6
B 10 245 63399 366.47 884 863 170.6
B 0 189 35561 203.34 884 863 170.6
C 14 238 159288 789.23 858 861 200.7
C 3 233 123033 608.62 858 861 200.7
C 14 254 32287 156.55 858 861 200.7
D 1 52 603043 2957.83 868 846 203.6
D 8 195 290361 1422.02 868 846 203.6
D 2 234 27016 128.54 868 846 203.6

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