ASTROSAT CZTI

Data Quality Report

Orbit 01111

Creation date: 2024-06-27T14:07:43.814744
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/AS1P01_997T01_9000000214_01111cztM0_level2.evt modeM0/AS1P01_997T01_9000000214_01111cztM0_level2_quad_clean.evt
Size (bytes)515,476,80049,766,400
Size491.6 MB 47.5 MB
Events in quadrant A3,805,500329,691
Events in quadrant B3,981,085331,814
Events in quadrant C3,900,714314,642
Events in quadrant D3,716,726309,987

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135222
B0140361
C0137811
D0132391

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3093160.517297%
B3093150.484966%
C309350.161655%
D3093280.905270%

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 4278 3094 97 97 2.27% 3.14%
B 4278 3094 139 139 3.25% 4.49%
C 4278 3094 91 91 2.13% 2.94%
D 4278 3094 90 90 2.10% 2.91%

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 4 32 73023 308.18 970 973 233.8
A 0 253 7444 27.68 970 973 233.8
A 11 79 4837 16.53 970 973 233.8
B 8 38 51210 211.12 1019 1023 237.7
B 5 249 12734 49.26 1019 1023 237.7
B 15 22 11205 42.83 1019 1023 237.7
C 15 241 154346 585.59 931 962 261.9
C 10 207 74240 279.76 931 962 261.9
C 3 79 12794 45.17 931 962 261.9
D 2 16 177574 663.31 903 928 266.3
D 2 216 99793 371.24 903 928 266.3
D 2 152 22049 79.31 903 928 266.3

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