ASTROSAT CZTI

Data Quality Report

Orbit 47513

Creation date: 2024-07-11T15:30:02.094274
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_037T05_9000006332_47513cztM0_level2.fits modeM0/AS1A13_037T05_9000006332_47513cztM0_level2_quad_clean.evt
Size (bytes)760,754,880152,919,360
Size725.5 MB 145.8 MB
Events in quadrant A9,707,6901,003,049
Events in quadrant B5,518,3911,047,664
Events in quadrant C4,298,3831,011,608
Events in quadrant D7,877,993887,594

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02000
B02000
C02000
D02000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0352943
B0231183
C0202353
D0303763

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A98023994.070598%
B98023533.601306%
C9803640.652861%
D98035205.304499%

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 10282 9805 67 67 0.65% 0.68%
B 10282 9805 140 140 1.36% 1.43%
C 10283 9806 0 0 0.00% 0.00%
D 10283 9806 434 434 4.22% 4.43%

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 10 83 5069573 22252.87 1092 1068 227.8
A 13 248 216049 943.86 1092 1068 227.8
A 9 191 186458 813.94 1092 1068 227.8
B 5 32 833187 3806.85 1096 1061 218.6
B 0 200 127659 579.17 1096 1061 218.6
B 0 190 108942 493.54 1096 1061 218.6
C 3 233 27700 102.93 1091 1095 258.5
C 1 3 17888 64.97 1091 1095 258.5
C 13 61 7124 23.33 1091 1095 258.5
D 6 112 2970321 10953.7 1070 1035 271.1
D 7 38 201577 739.8 1070 1035 271.1
D 2 249 119504 437.03 1070 1035 271.1

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