ASTROSAT CZTI

Data Quality Report

Orbit 11047

Creation date: 2024-06-27T16:07:26.570731
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/AS1A04_113T02_9000001606_11047cztM0_level2.evt modeM0/AS1A04_113T02_9000001606_11047cztM0_level2_quad_clean.evt
Size (bytes)845,974,08096,776,640
Size806.8 MB 92.3 MB
Events in quadrant A10,492,481558,587
Events in quadrant B5,620,021600,426
Events in quadrant C3,924,817614,197
Events in quadrant D5,030,500588,409

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0369653
B0219982
C0173342
D0198402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8180191723.435208%
B81807689.388753%
C81802523.080685%
D81804074.975550%

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 9184 8179 1014 1014 11.04% 12.40%
B 9185 8182 240 240 2.61% 2.93%
C 9185 8183 0 0 0.00% 0.00%
D 9185 8182 97 97 1.06% 1.19%

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 15 174 2952707 15037.61 955 931 196.3
A 14 238 2797808 14248.49 955 931 196.3
A 8 5 1037942 5282.98 955 931 196.3
B 4 239 1535139 7941.0 1000 974 193.2
B 10 244 61580 313.7 1000 974 193.2
B 11 51 31264 156.78 1000 974 193.2
C 9 54 13942 55.75 1000 1002 232.1
C 13 61 7352 27.36 1000 1002 232.1
C 8 128 5127 17.77 1000 1002 232.1
D 8 195 632292 2622.95 998 970 240.7
D 7 71 165907 685.26 998 970 240.7
D 11 129 86223 354.2 998 970 240.7

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