ASTROSAT CZTI

Data Quality Report

Orbit 30960

Creation date: 2024-06-27T20:21:39.214618
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_058T11_9000004474_30960cztM0_level2.evt modeM0/AS1A10_058T11_9000004474_30960cztM0_level2_quad_clean.evt
Size (bytes)609,759,36093,072,960
Size581.5 MB 88.8 MB
Events in quadrant A3,154,736618,333
Events in quadrant B5,174,522612,086
Events in quadrant C3,728,212596,361
Events in quadrant D6,005,861574,574

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131751
B0192761
C0149402
D0221041

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5972380.636303%
B59731732.896367%
C59721752.930342%
D59722604.353650%

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 7227 5972 0 0 0.00% 0.00%
B 7228 5973 45 45 0.62% 0.75%
C 7227 5972 52 52 0.72% 0.87%
D 7227 5972 96 96 1.33% 1.61%

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 11 47 15360 90.03 814 799 161.7
A 13 254 10412 59.44 814 799 161.7
A 3 137 7621 42.18 814 799 161.7
B 6 159 1726770 11407.75 806 787 151.3
B 4 80 140394 922.72 806 787 151.3
B 0 190 44693 290.19 806 787 151.3
C 0 10 298352 1627.93 787 797 182.8
C 3 233 207956 1133.37 787 797 182.8
C 14 238 129168 702.32 787 797 182.8
D 13 174 2640967 14135.95 789 772 186.8
D 8 195 257101 1372.42 789 772 186.8
D 2 250 100919 536.2 789 772 186.8

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