ASTROSAT CZTI

Data Quality Report

Orbit 13472

Creation date: 2024-06-27T16:41:18.085061
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/AS1A04_103T01_9000001988_13472cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13472cztM0_level2_quad_clean.evt
Size (bytes)403,024,32071,228,160
Size384.4 MB 67.9 MB
Events in quadrant A2,880,965436,269
Events in quadrant B3,021,966444,697
Events in quadrant C2,911,607436,513
Events in quadrant D2,975,884413,297

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125252
B0128431
C0126071
D0129561

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6094470.771250%
B6094661.083032%
C6094460.754841%
D6094961.575320%

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 7140 6095 0 0 0.00% 0.00%
B 7140 6095 1 1 0.01% 0.02%
C 7140 6095 0 0 0.00% 0.00%
D 7140 6095 41 41 0.57% 0.67%

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 8 15 16371 103.46 743 726 151.2
A 0 226 6674 39.33 743 726 151.2
A 1 162 5816 33.66 743 726 151.2
B 3 64 43295 303.5 740 721 140.3
B 4 48 40039 280.29 740 721 140.3
B 0 214 24146 166.99 740 721 140.3
C 3 233 45702 270.09 729 734 166.5
C 0 207 21557 125.07 729 734 166.5
C 13 61 5144 26.49 729 734 166.5
D 9 85 151554 874.76 721 699 172.5
D 8 195 39910 227.37 721 699 172.5
D 13 249 27005 152.54 721 699 172.5

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