ASTROSAT CZTI

Data Quality Report

Orbit 19362

Creation date: 2024-06-27T18:01:58.069327
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/AS1A05_025T17_9000002858_19362cztM0_level2.evt modeM0/AS1A05_025T17_9000002858_19362cztM0_level2_quad_clean.evt
Size (bytes)164,744,64030,666,240
Size157.1 MB 29.2 MB
Events in quadrant A841,630218,055
Events in quadrant B843,060222,281
Events in quadrant C862,412209,520
Events in quadrant D2,332,949162,120

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034121
B034221
C035121
D080131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1570372.356688%
B1570392.484076%
C1570563.566879%
D157066942.611465%

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 2590 1570 0 0 0.00% 0.00%
B 2590 1570 0 0 0.00% 0.00%
C 2590 1570 0 0 0.00% 0.00%
D 2590 1570 541 541 20.89% 34.46%

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 0 226 1775 34.62 218 213 45.1
A 13 254 1773 34.57 218 213 45.1
A 9 143 1645 31.74 218 213 45.1
B 12 111 4558 102.41 214 209 42.5
B 11 111 4343 97.35 214 209 42.5
B 14 111 3849 85.72 214 209 42.5
C 14 238 33023 648.35 211 213 50.6
C 3 233 2880 52.7 211 213 50.6
C 13 61 1462 24.68 211 213 50.6
D 1 52 1009695 23287.88 176 171 43.3
D 10 66 380093 8764.11 176 171 43.3
D 7 238 243944 5623.4 176 171 43.3

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