ASTROSAT CZTI

Data Quality Report

Orbit 58733

Creation date: 2026-08-06T01:09:30.943921
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_004T06_9000006594_58733cztM0_level2.fits modeM0/AS1A14_004T06_9000006594_58733cztM0_level2_quad_clean.evt
Size (bytes)434,410,56082,656,000
Size414.3 MB 78.8 MB
Events in quadrant A2,627,658561,588
Events in quadrant B2,963,237591,980
Events in quadrant C3,030,160537,745
Events in quadrant D7,005,317404,432

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133871241
B0141971223
C0144691023
D0278643076

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012610
B012612
C012610
D012511

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5859480.819252%
B5851951.623654%
C58851222.073067%
D5731127722.282324%

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 7529 5999 9 9 0.12% 0.15%
B 7528 6019 33 33 0.44% 0.55%
C 7516 6049 93 93 1.24% 1.54%
D 7446 5832 1250 1250 16.79% 21.43%

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 12 114 88183 554.5 640 624 157.9
A 3 14 20550 126.19 640 624 157.9
A 15 233 18681 114.35 640 624 157.9
B 8 234 115310 844.36 630 609 135.8
B 4 201 63696 464.41 630 609 135.8
B 0 63 47483 345.06 630 609 135.8
C 13 3 268034 1551.18 629 622 172.4
C 12 249 71542 411.39 629 622 172.4
C 3 233 65911 378.72 629 622 172.4
D 11 129 4439638 28296.39 549 524 156.9
D 2 249 128240 814.1 549 524 156.9
D 14 49 76375 483.5 549 524 156.9

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