ASTROSAT CZTI

Data Quality Report

Orbit 09104

Creation date: 2024-06-27T15:41:11.106770
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/AS1A03_120T01_9000001266_09104cztM0_level2.evt modeM0/AS1A03_120T01_9000001266_09104cztM0_level2_quad_clean.evt
Size (bytes)639,118,08076,697,280
Size609.5 MB 73.1 MB
Events in quadrant A4,859,786433,181
Events in quadrant B4,650,686444,344
Events in quadrant C4,381,050427,669
Events in quadrant D4,871,623410,339

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019843127
B019118109
C01868998
D020307131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01800
B01800
C01800
D01800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A87312623.000802%
B87322673.057719%
C87391581.807987%
D87372262.586700%

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 60116 8778 0 0 0.00% 0.00%
B 60116 8777 0 0 0.00% 0.00%
C 60116 8784 5 5 0.01% 0.06%
D 60116 8781 55 55 0.09% 0.63%

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 8 5 428279 1845.29 1142 1116 231.5
A 1 162 28078 116.47 1142 1116 231.5
A 0 226 10662 41.24 1142 1116 231.5
B 0 214 112091 508.76 1150 1124 218.1
B 0 229 27054 118.88 1150 1124 218.1
B 10 252 25775 113.02 1150 1124 218.1
C 14 67 45402 173.84 1103 1108 254.8
C 14 234 30795 116.51 1103 1108 254.8
C 13 61 8276 28.13 1103 1108 254.8
D 1 52 166684 604.89 1087 1059 273.8
D 13 104 123736 448.04 1087 1059 273.8
D 10 199 114198 413.2 1087 1059 273.8

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