ASTROSAT CZTI

Data Quality Report

Orbit 14701

Creation date: 2024-06-27T16:58:39.317912
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_057T09_9000002174_14701cztM0_level2.evt modeM0/AS1G08_057T09_9000002174_14701cztM0_level2_quad_clean.evt
Size (bytes)559,290,24091,013,760
Size533.4 MB 86.8 MB
Events in quadrant A3,634,677573,230
Events in quadrant B3,771,191564,583
Events in quadrant C5,502,253550,761
Events in quadrant D3,532,725556,965

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153323
B0157362
C0220002
D0154202

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7338961.308258%
B73381111.512674%
C73381131.539929%
D7338881.199237%

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 9334 7339 0 0 0.00% 0.00%
B 9334 7339 4 4 0.04% 0.05%
C 9334 7339 0 0 0.00% 0.00%
D 9334 7339 11 11 0.12% 0.15%

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 12 189 38693 205.26 917 896 184.1
A 8 15 29837 157.16 917 896 184.1
A 3 1 19839 102.87 917 896 184.1
B 0 189 145709 829.13 909 887 174.7
B 0 229 30128 167.41 909 887 174.7
B 12 111 20708 113.48 909 887 174.7
C 3 233 2061061 10171.73 880 884 202.5
C 3 234 7490 32.62 880 884 202.5
C 13 61 6357 27.02 880 884 202.5
D 2 14 81559 383.28 885 862 210.5
D 2 120 35687 165.41 885 862 210.5
D 2 234 24777 113.59 885 862 210.5

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