ASTROSAT CZTI

Data Quality Report

Orbit 04024

Creation date: 2024-06-27T14:36:28.074152
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_173T01_9000000514_04024cztM0_level2.evt modeM0/AS1G05_173T01_9000000514_04024cztM0_level2_quad_clean.evt
Size (bytes)413,343,36057,447,360
Size394.2 MB 54.8 MB
Events in quadrant A3,117,203326,805
Events in quadrant B3,155,025333,183
Events in quadrant C2,922,317326,574
Events in quadrant D2,895,136312,972

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134363
B0133532
C0129862
D0131512

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6298570.905049%
B6298230.365195%
C6298110.174659%
D6298290.460464%

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 7628 6299 30 30 0.39% 0.48%
B 7628 6299 6 6 0.08% 0.10%
C 7628 6299 7 7 0.09% 0.11%
D 7628 6299 12 12 0.16% 0.19%

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 143684 927.1 755 740 154.2
A 0 118 31284 198.1 755 740 154.2
A 7 16 17420 108.18 755 740 154.2
B 4 81 102595 702.35 768 752 145.0
B 14 167 28711 192.82 768 752 145.0
B 0 172 26682 178.82 768 752 145.0
C 4 112 47022 274.83 728 733 168.4
C 9 144 19142 109.3 728 733 168.4
C 10 65 6211 32.52 728 733 168.4
D 2 14 42059 241.21 720 700 171.5
D 2 232 36738 210.18 720 700 171.5
D 10 246 23929 135.47 720 700 171.5

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