ASTROSAT CZTI

Data Quality Report

Orbit 29475

Creation date: 2024-06-27T20:04:28.987783
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_102T09_9000004242_29475cztM0_level2.evt modeM0/AS1A10_102T09_9000004242_29475cztM0_level2_quad_clean.evt
Size (bytes)838,693,44087,825,600
Size799.8 MB 83.8 MB
Events in quadrant A3,993,776568,303
Events in quadrant B3,964,365577,675
Events in quadrant C4,091,375548,977
Events in quadrant D12,820,008417,963

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166682
B0165592
C0166802
D0436132

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78443985.073942%
B78444015.112188%
C78443834.882713%
D7844269034.293728%

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 7859 7845 3 3 0.04% 0.04%
B 7859 7845 0 0 0.00% 0.00%
C 7859 7845 0 0 0.00% 0.00%
D 7859 7845 2229 2229 28.36% 28.41%

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 12 96 106548 517.48 1006 983 204.0
A 13 254 14351 65.53 1006 983 204.0
A 3 137 10322 45.78 1006 983 204.0
B 12 111 24316 118.64 1001 973 196.7
B 11 111 22069 107.22 1001 973 196.7
B 14 111 20364 98.56 1001 973 196.7
C 3 233 162583 712.47 963 968 226.8
C 14 238 153415 672.05 963 968 226.8
C 2 114 19164 80.22 963 968 226.8
D 8 195 6182673 29812.26 875 850 207.4
D 1 52 1742366 8398.58 875 850 207.4
D 13 153 711294 3426.16 875 850 207.4

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