ASTROSAT CZTI

Data Quality Report

Orbit 43929

Creation date: 2024-06-27T22:57:20.144832
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/AS1A13_024T02_9000005918_43929cztM0_level2.fits modeM0/AS1A13_024T02_9000005918_43929cztM0_level2_quad_clean.evt
Size (bytes)584,821,440110,041,920
Size557.7 MB 104.9 MB
Events in quadrant A5,220,803760,437
Events in quadrant B4,193,383774,985
Events in quadrant C4,735,020727,014
Events in quadrant D6,948,231574,586

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210630
B0173520
C0190750
D0255490

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71021421.999437%
B71031432.013234%
C71033014.237646%
D7103119916.880191%

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 7102 7102 44 44 0.62% 0.62%
B 7103 7103 55 55 0.77% 0.77%
C 7103 7103 242 242 3.41% 3.41%
D 7103 7103 996 996 14.02% 14.02%

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 10 83 1066704 6551.33 784 766 162.7
A 15 222 867396 5326.37 784 766 162.7
A 15 223 61150 371.12 784 766 162.7
B 0 213 315653 2076.48 778 755 151.6
B 0 200 171904 1128.58 778 755 151.6
B 15 36 132224 866.92 778 755 151.6
C 15 158 1376349 7689.86 756 761 178.9
C 14 254 150804 838.78 756 761 178.9
C 3 233 116125 644.91 756 761 178.9
D 12 17 2107889 11585.16 703 679 181.9
D 1 52 577099 3169.08 703 679 181.9
D 5 235 386672 2122.14 703 679 181.9

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