ASTROSAT CZTI

Data Quality Report

Orbit 59396

Creation date: 2026-09-19T14:31:37.201492
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_59396cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59396cztM0_level2_quad_clean.evt
Size (bytes)495,737,28090,207,360
Size472.8 MB 86.0 MB
Events in quadrant A3,118,946606,125
Events in quadrant B3,266,153666,521
Events in quadrant C2,940,505594,396
Events in quadrant D8,528,131418,891

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137901
B0141761
C0134681
D0298341

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63881111.737633%
B6389881.377367%
C6389711.111285%
D6389181328.376898%

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 7338 6389 51 51 0.70% 0.80%
B 7339 6390 10 10 0.14% 0.16%
C 7339 6390 21 21 0.29% 0.33%
D 7339 6390 1742 1742 23.74% 27.26%

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 259344 1510.53 699 681 171.2
A 3 245 45879 263.95 699 681 171.2
A 15 233 31703 181.16 699 681 171.2
B 5 236 203593 1360.81 693 667 149.1
B 4 236 156043 1041.94 693 667 149.1
B 5 185 94773 631.07 693 667 149.1
C 6 223 164869 870.32 682 679 188.7
C 4 5 37335 194.3 682 679 188.7
C 14 96 20539 105.27 682 679 188.7
D 12 110 5387293 30466.67 620 591 176.8
D 3 12 533607 3014.68 620 591 176.8
D 6 239 48593 271.49 620 591 176.8

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