ASTROSAT CZTI

Data Quality Report

Orbit 28598

Creation date: 2024-06-27T19:53:50.891518
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_045T06_9000004108_28598cztM0_level2.evt modeM0/AS1A10_045T06_9000004108_28598cztM0_level2_quad_clean.evt
Size (bytes)467,429,76085,178,880
Size445.8 MB 81.2 MB
Events in quadrant A3,086,255543,521
Events in quadrant B3,203,409553,504
Events in quadrant C3,004,106536,364
Events in quadrant D4,441,706513,548

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130381
B0133921
C0127061
D0173321

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6194460.742654%
B6195771.242938%
C6195751.210654%
D61942183.519535%

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 7249 6194 5 5 0.07% 0.08%
B 7250 6195 25 25 0.34% 0.40%
C 7250 6195 0 0 0.00% 0.00%
D 7249 6194 175 175 2.41% 2.83%

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 122726 792.68 763 748 153.9
A 13 254 9709 58.23 763 748 153.9
A 3 137 7308 42.63 763 748 153.9
B 10 245 194663 1352.81 755 736 143.4
B 4 80 36890 252.2 755 736 143.4
B 12 111 17692 118.28 755 736 143.4
C 14 238 120807 695.92 735 740 172.5
C 7 247 14223 78.15 735 740 172.5
C 3 233 4984 24.6 735 740 172.5
D 1 52 779985 4469.15 734 716 174.4
D 8 195 564231 3231.79 734 716 174.4
D 13 104 281765 1611.83 734 716 174.4

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