ASTROSAT CZTI

Data Quality Report

Orbit 06544

Creation date: 2024-06-27T15:08:34.647927
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/AS1G06_091T01_9000000880_06544cztM0_level2.evt modeM0/AS1G06_091T01_9000000880_06544cztM0_level2_quad_clean.evt
Size (bytes)433,036,80097,038,720
Size413.0 MB 92.5 MB
Events in quadrant A3,081,967628,286
Events in quadrant B3,209,047638,352
Events in quadrant C2,820,863638,501
Events in quadrant D3,575,614595,308

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133262
B0138621
C0128311
D0150551

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6275791.258964%
B62751582.517928%
C6275751.195219%
D62752433.872510%

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 7260 6276 2 2 0.03% 0.03%
B 7260 6276 62 62 0.85% 0.99%
C 7260 6276 1 1 0.01% 0.02%
D 7260 6276 120 120 1.65% 1.91%

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 15 236 136921 924.88 721 705 147.3
A 8 15 64339 432.06 721 705 147.3
A 13 14 37298 248.46 721 705 147.3
B 4 48 150967 1090.36 726 706 137.8
B 15 204 81574 586.81 726 706 137.8
B 0 219 75450 542.37 726 706 137.8
C 12 4 7431 40.36 721 724 166.2
C 13 61 5633 29.54 721 724 166.2
C 3 202 1898 7.06 721 724 166.2
D 2 33 530102 3082.21 701 680 171.8
D 2 152 103850 600.64 701 680 171.8
D 14 34 78710 454.28 701 680 171.8

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