ASTROSAT CZTI

Data Quality Report

Orbit 03536

Creation date: 2024-06-27T14:30:40.418992
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/AS1G05_045T01_9000000468_03536cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03536cztM0_level2_quad_clean.evt
Size (bytes)657,725,760110,580,480
Size627.3 MB 105.5 MB
Events in quadrant A4,025,173697,203
Events in quadrant B4,343,744702,539
Events in quadrant C5,830,314686,307
Events in quadrant D5,142,178670,292

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181292
B0190811
C0233291
D0213111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8536670.784911%
B85361051.230084%
C85364204.920337%
D8536560.656045%

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 9021 8537 15 15 0.17% 0.18%
B 9021 8537 2 2 0.02% 0.02%
C 9021 8537 389 389 4.31% 4.56%
D 9021 8537 38 38 0.42% 0.45%

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 50 203590 1008.0 978 951 201.0
A 0 118 27853 133.82 978 951 201.0
A 8 15 18052 85.06 978 951 201.0
B 15 204 314074 1618.32 998 973 193.5
B 0 229 36834 185.35 998 973 193.5
B 8 3 34985 175.8 998 973 193.5
C 4 248 2027190 9084.11 951 955 223.1
C 15 208 33575 146.24 951 955 223.1
C 1 192 22726 97.6 951 955 223.1
D 10 203 901642 3893.04 952 923 231.4
D 1 20 444251 1916.13 952 923 231.4
D 13 223 87006 372.06 952 923 231.4

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