ASTROSAT CZTI

Data Quality Report

Orbit 45202

Creation date: 2024-06-27T23:10:33.242227
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/AS1A13_049T06_9000006054_45202cztM0_level2.fits modeM0/AS1A13_049T06_9000006054_45202cztM0_level2_quad_clean.evt
Size (bytes)424,880,64087,497,280
Size405.2 MB 83.4 MB
Events in quadrant A5,784,306754,818
Events in quadrant B5,051,478762,139
Events in quadrant C4,453,046738,968
Events in quadrant D11,36510

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226190
B0198209
C0183339
D0480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73333504.772944%
B73295787.886478%
C73275307.233520%
D2400.000000%

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 7568 7333 5 5 0.07% 0.07%
B 7568 7332 186 186 2.46% 2.54%
C 7569 7334 313 313 4.14% 4.27%
D 24 24 0 0 0.00% 0.00%

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 10 83 2456700 13871.85 844 821 177.0
A 15 174 24612 134.38 844 821 177.0
A 0 243 13086 69.28 844 821 177.0
B 3 112 797613 4776.37 833 806 166.8
B 4 170 691548 4140.57 833 806 166.8
B 5 172 87731 521.06 833 806 166.8
C 12 2 1114365 5750.88 829 832 193.6
C 3 233 35007 176.5 829 832 193.6
C 15 208 27921 139.9 829 832 193.6
D 1 52 112 64.63 2 2 1.7
D 2 234 93 53.46 2 2 1.7
D 13 249 92 52.88 2 2 1.7

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