ASTROSAT CZTI

Data Quality Report

Orbit 28199

Creation date: 2024-06-27T19:49:05.076990
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/AS1A10_045T09_9000004072_28199cztM0_level2.evt modeM0/AS1A10_045T09_9000004072_28199cztM0_level2_quad_clean.evt
Size (bytes)474,595,20089,038,080
Size452.6 MB 84.9 MB
Events in quadrant A3,028,959574,962
Events in quadrant B3,071,799592,203
Events in quadrant C3,079,302555,099
Events in quadrant D4,763,953532,941

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130210
B0131020
C0131810
D0184130

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6316230.364155%
B6316440.696643%
C6316610.965801%
D63162764.369854%

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 7386 6317 0 0 0.00% 0.00%
B 7386 6317 1 1 0.01% 0.02%
C 7386 6317 1 1 0.01% 0.02%
D 7386 6317 219 219 2.97% 3.47%

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 12 96 21887 135.62 776 759 155.8
A 6 16 11714 70.32 776 759 155.8
A 13 254 9310 54.89 776 759 155.8
B 0 230 21250 139.49 772 751 147.0
B 12 111 18347 119.73 772 751 147.0
B 11 111 16461 106.9 772 751 147.0
C 14 238 119523 688.53 737 742 172.5
C 3 233 71658 411.07 737 742 172.5
C 15 208 13462 73.73 737 742 172.5
D 1 52 1811446 10240.18 733 713 176.8
D 8 195 82969 465.18 733 713 176.8
D 5 222 75091 420.63 733 713 176.8

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