ASTROSAT CZTI

Data Quality Report

Orbit 14334

Creation date: 2024-06-27T16:53:40.535924
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_078T01_9000002110_14334cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14334cztM0_level2_quad_clean.evt
Size (bytes)647,527,68082,612,800
Size617.5 MB 78.8 MB
Events in quadrant A4,020,447499,454
Events in quadrant B5,452,582491,321
Events in quadrant C4,146,948490,368
Events in quadrant D5,458,153473,840

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169894
B0213023
C0168373
D0214283

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78632092.658019%
B78635076.447921%
C78631822.314638%
D78634065.163424%

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 8459 7865 5 5 0.06% 0.06%
B 8459 7864 166 166 1.96% 2.11%
C 8459 7866 0 0 0.00% 0.00%
D 8459 7864 182 182 2.15% 2.31%

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 8 15 147586 731.17 986 967 200.5
A 11 29 41524 202.25 986 967 200.5
A 12 189 39270 191.01 986 967 200.5
B 10 245 1261785 6626.8 963 942 190.3
B 10 16 230474 1206.38 963 942 190.3
B 0 189 85138 442.52 963 942 190.3
C 3 233 438865 1953.75 951 953 224.1
C 13 61 6799 26.08 951 953 224.1
C 14 234 2383 6.38 951 953 224.1
D 5 222 650521 2864.86 944 921 226.7
D 13 122 427665 1882.03 944 921 226.7
D 10 199 325604 1431.92 944 921 226.7

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