ASTROSAT CZTI

Data Quality Report

Orbit 17113

Creation date: 2024-06-27T17:32:18.050687
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/AS1A05_004T03_9000002538_17113cztM0_level2.evt modeM0/AS1A05_004T03_9000002538_17113cztM0_level2_quad_clean.evt
Size (bytes)594,573,12092,989,440
Size567.0 MB 88.7 MB
Events in quadrant A3,872,628576,444
Events in quadrant B4,015,370582,253
Events in quadrant C4,283,689557,336
Events in quadrant D5,273,807525,269

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171433
B0172783
C0177583
D0213893

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82661992.407452%
B82662392.891362%
C82662603.145415%
D82665786.992499%

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 8976 8269 1 1 0.01% 0.01%
B 8976 8270 1 1 0.01% 0.01%
C 8976 8269 0 0 0.00% 0.00%
D 8976 8270 374 374 4.17% 4.52%

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 2 27829 132.16 999 975 203.2
A 0 226 8714 38.09 999 975 203.2
A 3 137 7498 32.1 999 975 203.2
B 12 111 23435 115.83 1001 973 193.9
B 0 190 20556 100.99 1001 973 193.9
B 11 111 20001 98.12 1001 973 193.9
C 3 233 368029 1610.77 962 966 227.9
C 14 238 148337 646.7 962 966 227.9
C 9 160 7621 29.2 962 966 227.9
D 5 222 1488722 6520.02 937 909 228.2
D 11 176 115926 504.04 937 909 228.2
D 10 70 35357 150.96 937 909 228.2

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