ASTROSAT CZTI

Data Quality Report

Orbit 33085

Creation date: 2024-06-27T20:45:04.008150
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/AS1A11_030T01_9000004760_33085cztM0_level2.evt modeM0/AS1A11_030T01_9000004760_33085cztM0_level2_quad_clean.evt
Size (bytes)667,267,20050,929,920
Size636.4 MB 48.6 MB
Events in quadrant A2,601,312308,743
Events in quadrant B3,503,015301,348
Events in quadrant C6,261,097270,275
Events in quadrant D7,465,187269,512

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112663
B0138102
C0223512
D0261062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5598100.178635%
B55982985.323330%
C5598131923.561986%
D559857610.289389%

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 7211 5599 0 0 0.00% 0.00%
B 7210 5598 182 182 2.52% 3.25%
C 7211 5599 999 999 13.85% 17.84%
D 7211 5599 636 636 8.82% 11.36%

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 13 254 9677 66.36 671 656 135.9
A 3 137 6339 41.8 671 656 135.9
A 0 226 5668 36.87 671 656 135.9
B 5 172 765675 6096.71 656 640 125.5
B 15 85 53255 419.3 656 640 125.5
B 0 189 26187 203.59 656 640 125.5
C 8 111 2571030 18969.04 585 590 135.5
C 1 23 561155 4136.79 585 590 135.5
C 7 221 397408 2928.39 585 590 135.5
D 7 223 2986975 18012.37 632 619 165.8
D 8 195 727454 4383.95 632 619 165.8
D 2 250 635314 3828.2 632 619 165.8

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