ASTROSAT CZTI

Data Quality Report

Orbit 13234

Creation date: 2024-06-27T16:38:11.916865
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_077T01_9000001970_13234cztM0_level2.evt modeM0/AS1G08_077T01_9000001970_13234cztM0_level2_quad_clean.evt
Size (bytes)198,979,20024,105,600
Size189.8 MB 23.0 MB
Events in quadrant A993,306164,537
Events in quadrant B3,088,15382,610
Events in quadrant C893,769174,129
Events in quadrant D917,408167,400

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043462
B0105051
C041421
D042381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A19271487.680332%
B1927112458.329009%
C1927623.217436%
D1927583.009860%

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 1978 1929 0 0 0.00% 0.00%
B 1977 1927 849 849 42.94% 44.06%
C 1978 1929 0 0 0.00% 0.00%
D 1978 1929 7 7 0.35% 0.36%

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 15 239 85343 1738.29 229 223 49.0
A 12 189 9787 195.31 229 223 49.0
A 1 162 7205 142.58 229 223 49.0
B 4 239 2568641 94018.62 130 126 27.3
B 0 214 6615 237.53 130 126 27.3
B 12 111 3002 105.27 130 126 27.3
C 15 208 12271 225.06 224 223 53.5
C 8 128 3343 58.28 224 223 53.5
C 8 112 1743 28.39 224 223 53.5
D 1 52 47772 862.08 222 215 55.2
D 8 195 30946 557.07 222 215 55.2
D 2 234 6860 120.46 222 215 55.2

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