ASTROSAT CZTI

Data Quality Report

Orbit 23067

Creation date: 2024-06-27T18:49:19.614160
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/AS1A07_049T01_9000003408_23067cztM0_level2.evt modeM0/AS1A07_049T01_9000003408_23067cztM0_level2_quad_clean.evt
Size (bytes)547,473,60083,237,760
Size522.1 MB 79.4 MB
Events in quadrant A3,148,448546,275
Events in quadrant B3,118,554553,684
Events in quadrant C3,116,474526,344
Events in quadrant D6,765,537449,895

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135160
B0133370
C0133570
D0244950

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6358270.424662%
B6359500.786287%
C6359991.556849%
D635998715.521308%

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 7303 6359 5 5 0.07% 0.08%
B 7304 6360 17 17 0.23% 0.27%
C 7304 6360 13 13 0.18% 0.20%
D 7304 6360 890 890 12.19% 13.99%

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 6 16 242225 1591.45 754 738 151.7
A 13 254 9009 54.51 754 738 151.7
A 3 137 6847 40.26 754 738 151.7
B 3 64 83233 574.98 748 729 143.5
B 4 216 67333 464.17 748 729 143.5
B 12 111 17461 116.61 748 729 143.5
C 0 207 127578 744.64 725 729 170.3
C 14 238 115349 672.85 725 729 170.3
C 0 10 45976 265.61 725 729 170.3
D 1 239 3696368 21729.57 685 662 170.1
D 1 52 417981 2453.7 685 662 170.1
D 9 85 26328 150.91 685 662 170.1

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