ASTROSAT CZTI

Data Quality Report

Orbit 08383

Creation date: 2024-06-27T15:32:03.918307
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/AS1C02_037T02_9000001170_08383cztM0_level2.evt modeM0/AS1C02_037T02_9000001170_08383cztM0_level2_quad_clean.evt
Size (bytes)292,890,24063,996,480
Size279.3 MB 61.0 MB
Events in quadrant A2,084,322413,679
Events in quadrant B2,343,984412,174
Events in quadrant C1,979,757405,254
Events in quadrant D2,157,462392,743

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091571
B096931
C090121
D094921

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4460290.650224%
B4460370.829596%
C446080.179372%
D4460310.695067%

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 4460 4460 1 1 0.02% 0.02%
B 4460 4460 11 11 0.25% 0.25%
C 4460 4460 0 0 0.00% 0.00%
D 4460 4460 20 20 0.45% 0.45%

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 14 111 41576 375.85 528 516 109.2
A 5 16 7823 66.89 528 516 109.2
A 0 226 4899 40.12 528 516 109.2
B 4 48 131103 1285.75 527 516 101.6
B 0 214 78933 772.09 527 516 101.6
B 10 252 24868 239.77 527 516 101.6
C 13 61 3841 28.15 507 508 118.4
C 1 16 1488 8.28 507 508 118.4
C 3 202 1259 6.34 507 508 118.4
D 14 34 84061 664.34 509 493 125.8
D 7 71 56899 448.41 509 493 125.8
D 2 14 36934 289.69 509 493 125.8

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