ASTROSAT CZTI

Data Quality Report

Orbit 11092

Creation date: 2024-06-27T16:08:12.436361
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_071T02_9000001620_11092cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11092cztM0_level2_quad_clean.evt
Size (bytes)592,963,20089,971,200
Size565.5 MB 85.8 MB
Events in quadrant A3,881,286554,775
Events in quadrant B5,355,839543,576
Events in quadrant C3,637,814556,153
Events in quadrant D4,551,334525,051

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165652
B0209691
C0161701
D0185791

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78382282.908905%
B78385677.233988%
C78381041.326869%
D78383574.554733%

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 7863 7839 0 0 0.00% 0.00%
B 7863 7839 241 241 3.06% 3.07%
C 7863 7839 0 0 0.00% 0.00%
D 7863 7839 176 176 2.24% 2.25%

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 204562 1043.15 949 925 195.2
A 11 29 17671 85.78 949 925 195.2
A 0 226 8552 39.07 949 925 195.2
B 10 16 958637 5297.03 935 910 180.8
B 4 239 532624 2940.82 935 910 180.8
B 15 204 53394 290.28 935 910 180.8
C 9 204 15114 65.43 924 929 216.8
C 8 128 10325 43.34 924 929 216.8
C 13 61 6921 27.64 924 929 216.8
D 13 104 491684 2209.39 912 886 222.1
D 10 253 149258 667.91 912 886 222.1
D 4 95 126918 567.35 912 886 222.1

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