ASTROSAT CZTI

Data Quality Report

Orbit 59389

Creation date: 2026-09-19T04:13:14.632034
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_033T01_9000006608_59389cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59389cztM0_level2_quad_clean.evt
Size (bytes)618,871,680129,381,120
Size590.2 MB 123.4 MB
Events in quadrant A4,053,970863,444
Events in quadrant B7,503,660855,900
Events in quadrant C4,554,881839,936
Events in quadrant D6,107,595742,812

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0187831
B0286231
C0198341
D0247411

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8871430.484726%
B8871104511.779957%
C8871520.586180%
D88715315.985796%

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 9290 8870 9 9 0.10% 0.10%
B 9290 8870 732 732 7.88% 8.25%
C 9290 8871 29 29 0.31% 0.33%
D 9290 8870 418 418 4.50% 4.71%

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 14 238 88910 357.2 1006 979 246.2
A 10 251 26228 102.57 1006 979 246.2
A 15 16 18098 69.54 1006 979 246.2
B 10 128 1914437 9230.17 965 927 207.3
B 5 185 1327926 6401.03 965 927 207.3
B 4 236 96397 460.52 965 927 207.3
C 15 208 404979 1487.41 992 985 271.6
C 6 223 129914 474.69 992 985 271.6
C 2 12 47427 170.99 992 985 271.6
D 12 110 1965856 7175.92 964 921 273.8
D 5 32 138562 502.66 964 921 273.8
D 2 31 115749 419.35 964 921 273.8

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

TCT plots

Parameter TCT0 TCT_healed
Tct