ASTROSAT CZTI

Data Quality Report

Orbit 59113

Creation date: 2026-08-31T18:51:33.876892
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_004T02_9000006600_59113cztM0_level2.fits modeM0/AS1A14_004T02_9000006600_59113cztM0_level2_quad_clean.evt
Size (bytes)1,011,496,32094,605,120
Size964.6 MB 90.2 MB
Events in quadrant A6,409,909745,664
Events in quadrant B4,067,340804,895
Events in quadrant C8,101,255705,014
Events in quadrant D18,231,29841,685

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248360
B0176200
C0297850
D0596780

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81564195.137322%
B81563183.898970%
C81576908.458992%
D8156772794.740069%

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 8156 8156 108 108 1.32% 1.32%
B 8156 8156 23 23 0.28% 0.28%
C 8157 8157 472 472 5.79% 5.79%
D 8155 8155 5667 5667 69.49% 69.49%

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 14 2186328 9730.78 906 883 224.6
A 3 95 442050 1964.31 906 883 224.6
A 10 251 198910 881.72 906 883 224.6
B 5 185 106207 545.93 905 869 192.9
B 10 128 90491 464.48 905 869 192.9
B 0 197 72615 371.84 905 869 192.9
C 3 233 3872930 16174.31 878 870 239.4
C 15 201 239432 996.52 878 870 239.4
C 12 252 207084 861.39 878 870 239.4
D 12 1 16523640 362376.78 151 143 45.6
D 12 110 983081 21556.81 151 143 45.6
D 2 249 63499 1389.46 151 143 45.6

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

TCT plots

Parameter TCT0 TCT_healed
Tct