ASTROSAT CZTI

Data Quality Report

Orbit 27029

Creation date: 2024-06-27T19:35:43.467112
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/AS1A09_120T02_9000003904_27029cztM0_level2.evt modeM0/AS1A09_120T02_9000003904_27029cztM0_level2_quad_clean.evt
Size (bytes)620,472,960112,268,160
Size591.7 MB 107.1 MB
Events in quadrant A5,613,492701,181
Events in quadrant B3,880,311761,031
Events in quadrant C3,648,837733,186
Events in quadrant D5,143,904686,246

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215890
B0160770
C0154360
D0202510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A743584211.324815%
B74361822.447552%
C74361662.232383%
D74364846.508876%

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 7590 7435 443 443 5.84% 5.96%
B 7591 7436 1 1 0.01% 0.01%
C 7591 7436 0 0 0.00% 0.00%
D 7591 7436 337 337 4.44% 4.53%

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 14 235 2083657 11456.51 891 874 181.8
A 0 13 30507 163.0 891 874 181.8
A 13 170 25660 136.34 891 874 181.8
B 3 64 106423 584.63 926 903 180.5
B 10 246 79940 437.9 926 903 180.5
B 10 245 44783 243.11 926 903 180.5
C 14 238 142061 666.24 897 903 211.9
C 15 208 14626 64.77 897 903 211.9
C 13 61 6141 24.72 897 903 211.9
D 1 52 1403516 6629.17 883 861 211.6
D 12 233 281043 1324.18 883 861 211.6
D 2 250 98848 463.1 883 861 211.6

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