ASTROSAT CZTI

Data Quality Report

Orbit 16057

Creation date: 2024-06-27T17:17:22.992880
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/AS1G08_012T01_9000002370_16057cztM0_level2.evt modeM0/AS1G08_012T01_9000002370_16057cztM0_level2_quad_clean.evt
Size (bytes)540,302,400111,398,400
Size515.3 MB 106.2 MB
Events in quadrant A3,976,197709,634
Events in quadrant B3,880,435723,444
Events in quadrant C4,136,475700,483
Events in quadrant D3,834,403691,616

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170683
B0167972
C0176832
D0171602

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78861321.673852%
B78861722.181080%
C78862763.499873%
D7886951.204666%

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 8452 7887 0 0 0.00% 0.00%
B 8452 7888 2 2 0.02% 0.03%
C 8452 7888 60 60 0.71% 0.76%
D 8452 7888 36 36 0.43% 0.46%

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 3 80 218619 1095.5 970 949 198.7
A 15 223 15913 75.31 970 949 198.7
A 9 143 8509 38.05 970 949 198.7
B 12 111 23141 116.74 973 948 190.1
B 11 111 20252 101.54 973 948 190.1
B 14 111 16846 83.63 973 948 190.1
C 3 233 257132 1158.6 939 943 221.1
C 14 238 143026 642.56 939 943 221.1
C 9 54 48766 216.28 939 943 221.1
D 1 52 108808 462.93 949 921 233.1
D 2 152 67414 285.31 949 921 233.1
D 4 239 27673 114.79 949 921 233.1

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