ASTROSAT CZTI

Data Quality Report

Orbit 29259

Creation date: 2024-06-27T20:02:00.314127
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_045T08_9000004208_29259cztM0_level2.evt modeM0/AS1A10_045T08_9000004208_29259cztM0_level2_quad_clean.evt
Size (bytes)725,230,08097,920,000
Size691.6 MB 93.4 MB
Events in quadrant A4,090,441610,815
Events in quadrant B4,399,378626,461
Events in quadrant C7,494,665595,566
Events in quadrant D5,453,107591,503

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171823
B0182683
C0276843
D0216613

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77752152.765273%
B77763134.025206%
C7776129816.692387%
D77762823.626543%

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 8340 7779 77 77 0.92% 0.99%
B 8341 7780 28 28 0.34% 0.36%
C 8341 7780 333 333 3.99% 4.28%
D 8341 7780 159 159 1.91% 2.04%

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 15 174 285063 1430.06 975 951 198.7
A 0 13 35072 171.75 975 951 198.7
A 13 254 17629 83.95 975 951 198.7
B 0 183 200716 1068.85 971 946 186.9
B 0 229 191552 1019.82 971 946 186.9
B 10 246 109540 581.02 971 946 186.9
C 3 233 3720171 17863.48 886 893 208.2
C 14 238 175786 840.0 886 893 208.2
C 10 9 73058 346.6 886 893 208.2
D 8 195 714693 3205.47 943 921 222.7
D 1 52 706126 3166.99 943 921 222.7
D 13 153 141271 630.29 943 921 222.7

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