ASTROSAT CZTI

Data Quality Report

Orbit 06739

Creation date: 2024-06-27T15:11:01.797219
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/AS1G06_066T01_9000000928_06739cztM0_level2.evt modeM0/AS1G06_066T01_9000000928_06739cztM0_level2_quad_clean.evt
Size (bytes)79,315,20010,828,800
Size75.6 MB 10.3 MB
Events in quadrant A556,21260,986
Events in quadrant B560,67362,798
Events in quadrant C534,87360,773
Events in quadrant D669,90256,357

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023251
B023300
C022910
D026500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A113940.351185%
B113930.263389%
C113900.000000%
D1139322.809482%

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 1139 1139 3 3 0.26% 0.26%
B 1139 1139 0 0 0.00% 0.00%
C 1139 1139 0 0 0.00% 0.00%
D 1139 1139 24 24 2.11% 2.11%

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 15 236 12109 386.29 140 136 31.0
A 0 23 2122 64.07 140 136 31.0
A 0 226 1441 42.1 140 136 31.0
B 4 81 13139 439.64 140 136 29.6
B 12 111 2891 93.15 140 136 29.6
B 11 111 2406 76.75 140 136 29.6
C 9 16 9765 289.56 134 134 33.3
C 12 4 1149 30.52 134 134 33.3
C 13 61 1032 27.0 134 134 33.3
D 2 136 79940 2314.03 132 127 34.5
D 8 195 55919 1617.59 132 127 34.5
D 14 34 25001 721.18 132 127 34.5

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