ASTROSAT CZTI

Data Quality Report

Orbit 55386

Creation date: 2025-12-23T20:33:39.731303
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/AS1A14_009T01_9000006534_55386cztM0_level2.fits modeM0/AS1A14_009T01_9000006534_55386cztM0_level2_quad_clean.evt
Size (bytes)29,427,8406,868,800
Size28.1 MB 6.6 MB
Events in quadrant A295,95142,080
Events in quadrant B225,61245,118
Events in quadrant C230,95840,443
Events in quadrant D293,65537,683

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D091

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131394
B0107655
C0108547
D0125038

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011
B111
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A503122.385686%
B50100.000000%
C50900.000000%
D512101.953125%

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 855 506 10 10 1.17% 1.98%
B 854 505 1 1 0.12% 0.20%
C 857 513 0 0 0.00% 0.00%
D 858 518 11 11 1.28% 2.12%

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 8 41137 2598.65 56 54 15.8
A 4 159 34409 2173.08 56 54 15.8
A 12 18 1115 67.11 56 54 15.8
B 10 247 5506 399.31 54 52 13.7
B 4 156 2308 165.17 54 52 13.7
B 12 111 1345 94.67 54 52 13.7
C 9 38 10221 613.53 54 53 16.6
C 13 3 6526 390.58 54 53 16.6
C 14 254 2701 159.78 54 53 16.6
D 8 160 65469 3827.25 55 52 17.1
D 5 173 4372 252.74 55 52 17.1
D 1 3 3163 182.01 55 52 17.1

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