ASTROSAT CZTI

Data Quality Report

Orbit 06624

Creation date: 2024-06-27T15:09:26.267212
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/AS1A02_082T01_9000000898_06624cztM0_level2.evt modeM0/AS1A02_082T01_9000000898_06624cztM0_level2_quad_clean.evt
Size (bytes)499,824,00093,061,440
Size476.7 MB 88.8 MB
Events in quadrant A3,322,680594,312
Events in quadrant B3,393,976592,770
Events in quadrant C3,149,616581,804
Events in quadrant D4,797,167563,254

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145463
B0146652
C0142552
D0190282

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6978741.060476%
B6978801.146460%
C6978460.659215%
D69782113.023789%

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 8803 6980 1 1 0.01% 0.01%
B 8803 6980 0 0 0.00% 0.00%
C 8803 6980 0 0 0.00% 0.00%
D 8803 6980 102 102 1.16% 1.46%

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 15 92359 535.28 834 814 171.0
A 14 111 15667 86.85 834 814 171.0
A 0 226 7857 41.18 834 814 171.0
B 0 219 78950 479.64 838 817 162.9
B 4 48 41475 249.59 838 817 162.9
B 4 81 19356 113.81 838 817 162.9
C 12 4 9946 48.35 805 807 189.0
C 13 61 6223 28.65 805 807 189.0
C 3 202 2040 6.52 805 807 189.0
D 8 195 1094615 5633.64 797 773 194.2
D 2 33 467426 2403.41 797 773 194.2
D 13 172 72704 370.47 797 773 194.2

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