ASTROSAT CZTI

Data Quality Report

Orbit 30142

Creation date: 2024-06-27T20:11:26.654967
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/AS1A10_097T03_9000004336_30142cztM0_level2.evt modeM0/AS1A10_097T03_9000004336_30142cztM0_level2_quad_clean.evt
Size (bytes)730,874,88090,308,160
Size697.0 MB 86.1 MB
Events in quadrant A3,803,864567,828
Events in quadrant B5,710,818567,962
Events in quadrant C8,330,149527,187
Events in quadrant D3,793,195559,845

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160591
B0226481
C0300111
D0158121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73433034.126379%
B73443885.283224%
C7344148820.261438%
D73441862.532680%

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 7373 7344 29 29 0.39% 0.39%
B 7374 7345 28 28 0.38% 0.38%
C 7374 7345 673 673 9.13% 9.16%
D 7374 7345 12 12 0.16% 0.16%

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 13 279411 1508.63 913 889 184.6
A 13 254 14082 71.46 913 889 184.6
A 3 137 9475 46.51 913 889 184.6
B 6 159 2038165 11666.73 891 867 174.6
B 0 156 73810 417.71 891 867 174.6
B 10 247 29191 162.2 891 867 174.6
C 3 233 4863125 24971.64 822 827 194.7
C 14 238 176719 903.34 822 827 194.7
C 14 254 67116 340.44 822 827 194.7
D 8 195 217096 992.7 895 874 217.8
D 2 250 64746 293.24 895 874 217.8
D 2 234 37953 170.23 895 874 217.8

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