ASTROSAT CZTI

Data Quality Report

Orbit 28303

Creation date: 2024-06-27T19:50:15.771557
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_102T10_9000004080_28303cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28303cztM0_level2_quad_clean.evt
Size (bytes)562,337,280113,279,040
Size536.3 MB 108.0 MB
Events in quadrant A3,512,979735,924
Events in quadrant B3,685,712749,019
Events in quadrant C3,528,907721,586
Events in quadrant D5,782,687691,097

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157120
B0160230
C0156760
D0225360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76601351.762402%
B76601491.945170%
C76601191.553525%
D76605256.853786%

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 7660 7660 0 0 0.00% 0.00%
B 7660 7660 7 7 0.09% 0.09%
C 7660 7660 0 0 0.00% 0.00%
D 7660 7660 379 379 4.95% 4.95%

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 13 254 11934 59.84 910 890 184.6
A 3 137 9221 45.14 910 890 184.6
A 0 226 7605 36.38 910 890 184.6
B 10 245 72278 412.16 904 880 173.2
B 10 246 36940 208.16 904 880 173.2
B 12 111 21705 120.22 904 880 173.2
C 14 238 140424 687.59 868 872 203.0
C 3 233 6815 29.28 868 872 203.0
C 13 61 5966 25.1 868 872 203.0
D 1 52 1977678 9779.84 850 826 202.1
D 8 195 322930 1593.51 850 826 202.1
D 2 250 225846 1113.21 850 826 202.1

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