ASTROSAT CZTI

Data Quality Report

Orbit 30064

Creation date: 2024-06-27T20:10:29.986028
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_071T07_9000004322_30064cztM0_level2.evt modeM0/AS1A10_071T07_9000004322_30064cztM0_level2_quad_clean.evt
Size (bytes)568,405,44069,897,600
Size542.1 MB 66.7 MB
Events in quadrant A3,420,403447,755
Events in quadrant B5,127,664453,789
Events in quadrant C3,926,401376,811
Events in quadrant D4,314,015399,247

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137072
B0192792
C0156792
D0166572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6288400.636132%
B6288921.463104%
C628788314.044854%
D62873485.535231%

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 7633 6289 3 3 0.04% 0.05%
B 7633 6289 3 3 0.04% 0.05%
C 7632 6288 1 1 0.01% 0.02%
D 7632 6288 273 273 3.58% 4.34%

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 8 192 25097 139.42 879 866 173.8
A 13 254 10377 54.72 879 866 173.8
A 3 137 8176 42.06 879 866 173.8
B 6 159 1679338 10279.1 872 852 163.3
B 12 111 19851 116.35 872 852 163.3
B 11 111 18095 105.6 872 852 163.3
C 14 238 379148 2097.28 776 781 180.4
C 14 254 342276 1892.89 776 781 180.4
C 3 233 165207 911.41 776 781 180.4
D 13 104 1040039 5446.63 813 796 190.8
D 8 195 130954 682.15 813 796 190.8
D 7 223 36371 186.45 813 796 190.8

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