ASTROSAT CZTI

Data Quality Report

Orbit 43113

Creation date: 2024-06-27T22:48:11.924608
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/AS1T05_154T01_9000005850_43113cztM0_level2.fits modeM0/AS1T05_154T01_9000005850_43113cztM0_level2_quad_clean.evt
Size (bytes)591,321,600166,320,000
Size563.9 MB 158.6 MB
Events in quadrant A6,146,5741,142,440
Events in quadrant B4,384,5431,162,568
Events in quadrant C4,610,6501,087,289
Events in quadrant D6,014,613989,313

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238683
B0193013
C0193973
D0241293

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01940
B01940
C01940
D01940

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0510
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A94372682.839886%
B9437290.307301%
C9437150.158949%
D94373423.624033%

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 13684 9439 182 182 1.33% 1.93%
B 13684 9439 11 11 0.08% 0.12%
C 13684 9439 8 8 0.06% 0.08%
D 13684 9439 309 309 2.26% 3.27%

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 1006632 4674.1 1068 1048 215.1
A 15 237 921037 4276.24 1068 1048 215.1
A 15 222 41093 186.13 1068 1048 215.1
B 0 229 95114 473.88 1053 1022 198.6
B 3 112 73377 364.41 1053 1022 198.6
B 0 189 40312 197.88 1053 1022 198.6
C 15 214 423292 1796.94 1032 1039 235.0
C 14 254 120864 509.93 1032 1039 235.0
C 15 159 15941 63.42 1032 1039 235.0
D 1 52 1224184 4966.93 1028 1001 246.3
D 12 218 252383 1020.78 1028 1001 246.3
D 12 33 148201 597.73 1028 1001 246.3

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