ASTROSAT CZTI

Data Quality Report

Orbit 29474

Creation date: 2024-06-27T20:04:28.298901
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_102T09_9000004242_29474cztM0_level2.evt modeM0/AS1A10_102T09_9000004242_29474cztM0_level2_quad_clean.evt
Size (bytes)818,683,20087,091,200
Size780.8 MB 83.1 MB
Events in quadrant A3,797,120568,636
Events in quadrant B3,870,524577,016
Events in quadrant C4,089,713545,218
Events in quadrant D12,538,325431,985

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156672
B0158322
C0163432
D0423852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73842673.615926%
B73853044.116452%
C73853034.102911%
D7385255634.610697%

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 9039 7386 0 0 0.00% 0.00%
B 9040 7387 0 0 0.00% 0.00%
C 9040 7387 0 0 0.00% 0.00%
D 9040 7387 2277 2277 25.19% 30.82%

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 13 254 13460 63.24 983 961 197.6
A 3 137 9745 44.45 983 961 197.6
A 0 226 8199 36.62 983 961 197.6
B 12 111 23744 120.05 974 948 189.9
B 11 111 21343 107.41 974 948 189.9
B 0 190 20891 105.03 974 948 189.9
C 3 233 283494 1275.52 935 941 221.5
C 14 238 146141 655.47 935 941 221.5
C 2 114 18181 77.83 935 941 221.5
D 8 195 6440782 31687.02 843 820 203.2
D 1 52 1107107 5443.35 843 820 203.2
D 7 80 1086352 5341.22 843 820 203.2

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