ASTROSAT CZTI

Data Quality Report

Orbit 04471

Creation date: 2024-06-27T14:42:54.504195
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/AS1SLEW_01234_9000000561_04471cztM0_level2.evt modeM0/AS1SLEW_01234_9000000561_04471cztM0_level2_quad_clean.evt
Size (bytes)35,015,0401,811,520
Size33.4 MB 1.7 MB
Events in quadrant A237,9073,162
Events in quadrant B246,7263,252
Events in quadrant C238,4403,284
Events in quadrant D301,1923,127

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09734
B09946
C09752
D0120714

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0102
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48000.000000%
B47900.000000%
C48100.000000%
D47651.050420%

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 482 482 0 0 0.00% 0.00%
B 482 482 0 0 0.00% 0.00%
C 482 482 0 0 0.00% 0.00%
D 482 482 5 5 1.04% 1.04%

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 0 118 876 55.75 61 59 14.7
A 12 194 668 41.55 61 59 14.7
A 0 226 640 39.64 61 59 14.7
B 4 48 1821 124.47 63 62 14.1
B 12 111 1005 66.73 63 62 14.1
B 11 111 751 48.75 63 62 14.1
C 14 48 524 28.87 60 60 16.1
C 13 61 500 27.38 60 60 16.1
C 14 67 246 11.57 60 60 16.1
D 13 235 41841 2646.38 57 55 15.8
D 12 79 29190 1845.17 57 55 15.8
D 5 97 3275 203.93 57 55 15.8

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