ASTROSAT CZTI

Data Quality Report

Orbit 04007

Creation date: 2024-06-27T14:36:14.427118
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_247T01_9000000512_04007cztM0_level2.evt modeM0/AS1G05_247T01_9000000512_04007cztM0_level2_quad_clean.evt
Size (bytes)441,331,200104,379,840
Size420.9 MB 99.5 MB
Events in quadrant A3,224,314691,689
Events in quadrant B3,008,630694,618
Events in quadrant C2,837,747681,260
Events in quadrant D3,865,837652,994

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140623
B0133232
C0130142
D0160892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63121312.075412%
B6312410.649556%
C6312300.475285%
D63122303.643853%

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 7477 6313 55 55 0.74% 0.87%
B 7477 6313 0 0 0.00% 0.00%
C 7477 6313 3 3 0.04% 0.05%
D 7477 6313 298 298 3.99% 4.72%

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 297308 1994.73 725 709 148.7
A 0 118 99987 667.68 725 709 148.7
A 0 226 16420 105.66 725 709 148.7
B 15 204 65567 465.26 736 719 139.4
B 10 16 22603 157.01 736 719 139.4
B 15 54 18491 127.51 736 719 139.4
C 9 144 53440 325.82 698 703 161.9
C 12 4 28635 172.57 698 703 161.9
C 8 128 15591 91.98 698 703 161.9
D 9 82 747982 4544.2 691 672 164.5
D 10 246 195370 1183.91 691 672 164.5
D 13 53 72806 438.63 691 672 164.5

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