ASTROSAT CZTI

Data Quality Report

Orbit 21005

Creation date: 2024-06-27T18:22:17.096107
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/AS1A05_072T04_9000003094_21005cztM0_level2.evt modeM0/AS1A05_072T04_9000003094_21005cztM0_level2_quad_clean.evt
Size (bytes)313,145,28058,527,360
Size298.6 MB 55.8 MB
Events in quadrant A2,168,667373,651
Events in quadrant B2,482,978374,669
Events in quadrant C2,185,269354,997
Events in quadrant D2,335,448348,015

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A113966460645671246
B1-1-1
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092721
B0101611
C092971
D099521

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4565370.810515%
B4565731.599124%
C4565420.920044%
D4565771.686747%

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 4565 4565 0 0 0.00% 0.00%
B 4565 4565 14 14 0.31% 0.31%
C 4565 4565 0 0 0.00% 0.00%
D 4565 4565 44 44 0.96% 0.96%

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 0 226 4861 37.82 564 553 113.9
A 3 137 4483 34.51 564 553 113.9
A 12 194 3986 30.14 564 553 113.9
B 7 220 153056 1443.44 557 544 105.7
B 0 189 118724 1118.51 557 544 105.7
B 12 111 12087 109.25 557 544 105.7
C 14 238 84777 671.96 534 536 125.4
C 10 91 16067 123.89 534 536 125.4
C 7 247 3767 25.77 534 536 125.4
D 13 104 76566 592.86 538 524 128.3
D 1 52 71091 550.17 538 524 128.3
D 2 120 55622 429.57 538 524 128.3

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