ASTROSAT CZTI

Data Quality Report

Orbit 58860

Creation date: 2026-08-14T15:16:00.608702
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_106T01_9000006596_58860cztM0_level2.fits modeM0/AS1A14_106T01_9000006596_58860cztM0_level2_quad_clean.evt
Size (bytes)355,155,84063,699,840
Size338.7 MB 60.7 MB
Events in quadrant A4,774,381367,255
Events in quadrant B3,797,780441,264
Events in quadrant C2,049,742420,223
Events in quadrant D2,189,116396,695

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170911
B0141731
C091251
D093481

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A430886019.962860%
B430844110.236769%
C4308240.557103%
D4308120.278552%

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 4308 4308 815 815 18.92% 18.92%
B 4308 4308 309 309 7.17% 7.17%
C 4308 4308 16 16 0.37% 0.37%
D 4308 4308 4 4 0.09% 0.09%

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 15 233 2520527 21525.25 461 448 117.1
A 3 14 238568 2033.9 461 448 117.1
A 3 245 45659 386.17 461 448 117.1
B 5 172 1491180 14879.76 469 452 100.2
B 5 185 169511 1687.47 469 452 100.2
B 4 236 102996 1023.55 469 452 100.2
C 6 223 70079 530.89 468 463 131.1
C 6 13 25482 190.79 468 463 131.1
C 12 252 22336 166.8 468 463 131.1
D 12 33 96012 714.94 469 448 133.7
D 5 38 83364 620.32 469 448 133.7
D 5 32 74942 557.31 469 448 133.7

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