ASTROSAT CZTI

Data Quality Report

Orbit 44058

Creation date: 2024-06-27T22:58:52.825893
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/AS1A13_029T01_9000005940_44058cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44058cztM0_level2_quad_clean.evt
Size (bytes)510,563,520128,102,400
Size486.9 MB 122.2 MB
Events in quadrant A5,003,994862,608
Events in quadrant B3,761,550896,834
Events in quadrant C4,803,594819,410
Events in quadrant D4,709,954745,240

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200601
B0167701
C0198211
D0197481

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1139955969009704139955804307502
B1-1-1
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79831682.104472%
B79831712.142052%
C79833784.735062%
D79834115.148440%

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 7983 7983 5 5 0.06% 0.06%
B 7983 7983 1 1 0.01% 0.01%
C 7983 7983 183 183 2.29% 2.29%
D 7983 7983 265 265 3.32% 3.32%

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 10 83 1169007 5911.07 944 924 197.6
A 14 238 107380 538.72 944 924 197.6
A 13 6 42117 208.46 944 924 197.6
B 12 111 24912 126.65 941 911 189.5
B 4 171 24035 122.02 941 911 189.5
B 14 111 22974 116.42 941 911 189.5
C 14 254 1049546 4751.57 920 926 220.7
C 3 233 108216 486.16 920 926 220.7
C 14 96 26521 115.98 920 926 220.7
D 13 249 664597 2903.8 906 878 228.6
D 5 222 218872 953.73 906 878 228.6
D 1 52 188060 818.93 906 878 228.6

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