ASTROSAT CZTI

Data Quality Report

Orbit 09697

Creation date: 2024-06-27T15:49:29.311802
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/AS1A03_068T01_9000001380_09697cztM0_level2.evt modeM0/AS1A03_068T01_9000001380_09697cztM0_level2_quad_clean.evt
Size (bytes)66,660,48010,699,200
Size63.6 MB 10.2 MB
Events in quadrant A510,74570,246
Events in quadrant B500,64769,438
Events in quadrant C499,25667,590
Events in quadrant D438,14040,996

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01712
B01713
C01713
D01914

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123107
B012297
C012399
D012595

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01283910718
B01282210744
C01346911332
D02004518303

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1042121.151631%
B1019121.177625%
C104480.766284%
D716263.631285%

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 7079 1719 0 0 0.00% 0.00%
B 7225 1691 0 0 0.00% 0.00%
C 7246 1712 0 0 0.00% 0.00%
D 7288 1231 1 1 0.01% 0.08%

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 0 226 1164 35.6 132 130 29.0
A 12 194 1053 31.77 132 130 29.0
A 3 137 625 17.04 132 130 29.0
B 12 111 2869 103.37 128 126 26.5
B 11 111 2303 82.04 128 126 26.5
B 14 111 1881 66.13 128 126 26.5
C 14 234 8508 270.68 125 125 31.0
C 13 61 987 27.83 125 125 31.0
C 14 238 466 11.01 125 125 31.0
D 1 52 115034 4896.05 84 82 23.5
D 2 234 2276 93.45 84 82 23.5
D 8 195 2104 86.12 84 82 23.5

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