ASTROSAT CZTI

Data Quality Report

Orbit 24065

Creation date: 2024-06-27T19:01:42.337019
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/AS1A07_165T01_9000003558_24065cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24065cztM0_level2_quad_clean.evt
Size (bytes)1,219,147,200321,935,040
Size1.1 GB 307.0 MB
Events in quadrant A7,914,2512,175,698
Events in quadrant B8,540,3832,218,094
Events in quadrant C8,955,3772,113,252
Events in quadrant D10,348,1212,057,936

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350905
B0363123
C0367443
D0424083

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03500
B03500
C03500
D03500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A172171050.609862%
B172171550.900273%
C172172051.190684%
D172175483.182901%

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 18667 17220 0 0 0.00% 0.00%
B 18667 17220 5 5 0.03% 0.03%
C 18667 17220 7 7 0.04% 0.04%
D 18667 17220 451 451 2.42% 2.62%

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 3 1 32138 73.65 2037 1992 409.3
A 13 254 25566 57.59 2037 1992 409.3
A 2 79 24293 54.48 2037 1992 409.3
B 0 197 275166 716.28 2034 1981 381.4
B 0 189 67535 171.88 2034 1981 381.4
B 15 33 57239 144.88 2034 1981 381.4
C 7 247 863900 1901.66 1953 1964 453.3
C 14 238 310297 680.26 1953 1964 453.3
C 0 239 158132 344.55 1953 1964 453.3
D 7 238 1108809 2344.04 1967 1907 472.2
D 8 195 777852 1643.18 1967 1907 472.2
D 1 52 620421 1309.8 1967 1907 472.2

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