ASTROSAT CZTI

Data Quality Report

Orbit 13696

Creation date: 2024-06-27T16:44:41.118562
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_070T01_9000002028_13696cztM0_level2.evt modeM0/AS1G08_070T01_9000002028_13696cztM0_level2_quad_clean.evt
Size (bytes)522,959,04086,140,800
Size498.7 MB 82.2 MB
Events in quadrant A3,582,748532,203
Events in quadrant B3,739,246567,990
Events in quadrant C3,551,832514,870
Events in quadrant D4,465,203481,869

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153012
B0155211
C0152481
D0178491

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73471662.259426%
B73471852.518035%
C73471211.646931%
D73472373.225806%

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 7663 7349 0 0 0.00% 0.00%
B 7663 7349 3 3 0.04% 0.04%
C 7663 7349 0 0 0.00% 0.00%
D 7663 7349 93 93 1.21% 1.27%

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 1 162 19427 99.36 917 897 186.5
A 15 69 9739 47.41 917 897 186.5
A 0 226 8409 40.28 917 897 186.5
B 0 219 58880 329.9 923 904 175.7
B 4 80 30144 166.38 923 904 175.7
B 12 111 20413 111.01 923 904 175.7
C 3 233 92043 443.81 887 892 205.4
C 13 61 6495 27.28 887 892 205.4
C 14 234 3853 14.42 887 892 205.4
D 1 52 747737 3486.58 882 857 214.2
D 8 195 171929 798.6 882 857 214.2
D 13 122 81132 374.74 882 857 214.2

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