ASTROSAT CZTI

Data Quality Report

Orbit 58192

Creation date: 2026-06-30T20:22:27.446894
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_042T02_9000006586_58192cztM0_level2.fits modeM0/AS1A14_042T02_9000006586_58192cztM0_level2_quad_clean.evt
Size (bytes)432,887,040100,175,040
Size412.8 MB 95.5 MB
Events in quadrant A3,105,965670,329
Events in quadrant B3,895,332711,937
Events in quadrant C3,007,268641,925
Events in quadrant D5,510,105555,817

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135672
B0157972
C0134642
D0207032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64971422.185624%
B64972614.017239%
C64971111.708481%
D64976339.742958%

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 7612 6498 8 8 0.11% 0.12%
B 7612 6497 42 42 0.55% 0.65%
C 7612 6497 1 1 0.01% 0.02%
D 7612 6498 485 485 6.37% 7.46%

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 3 245 45001 233.3 774 754 189.7
A 6 226 24380 124.57 774 754 189.7
A 4 3 22767 116.07 774 754 189.7
B 10 128 494261 3086.73 750 723 159.9
B 0 79 97731 606.72 750 723 159.9
B 4 201 96967 601.94 750 723 159.9
C 6 223 33415 157.61 755 746 207.3
C 12 252 16728 77.1 755 746 207.3
C 6 9 8379 36.82 755 746 207.3
D 8 160 1061517 5263.41 719 688 201.5
D 1 3 557833 2764.33 719 688 201.5
D 6 239 213736 1057.06 719 688 201.5

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