ASTROSAT CZTI

Data Quality Report

Orbit 30319

Creation date: 2024-06-27T20:13:38.122363
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_071T23_9000004356_30319cztM0_level2.evt modeM0/AS1A10_071T23_9000004356_30319cztM0_level2_quad_clean.evt
Size (bytes)1,522,163,520232,032,960
Size1.4 GB 221.3 MB
Events in quadrant A8,878,4241,470,613
Events in quadrant B15,985,4101,459,924
Events in quadrant C10,766,4551,411,755
Events in quadrant D9,211,0331,400,046

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0382704
B0602634
C0435984
D0392204

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03800
B03800
C03800
D03800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A186522471.324255%
B186525913.168561%
C186525042.702123%
D186512001.072329%

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 20402 18652 1 1 0.00% 0.01%
B 20402 18652 79 79 0.39% 0.42%
C 20402 18652 19 19 0.09% 0.10%
D 20401 18652 47 47 0.23% 0.25%

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 14 239 54563 114.28 2279 2231 457.9
A 8 192 35463 72.57 2279 2231 457.9
A 13 254 31515 63.95 2279 2231 457.9
B 6 159 5143038 11817.72 2236 2172 435.0
B 6 36 1871970 4298.25 2236 2172 435.0
B 0 183 124447 281.08 2236 2172 435.0
C 3 233 1841365 3582.97 2178 2189 513.3
C 14 238 367724 712.11 2178 2189 513.3
C 2 114 43082 79.67 2178 2189 513.3
D 8 195 351302 601.47 2187 2147 580.5
D 13 104 198487 338.22 2187 2147 580.5
D 2 250 187935 320.04 2187 2147 580.5

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