ASTROSAT CZTI

Data Quality Report

Orbit 12732

Creation date: 2024-06-27T16:31:43.560626
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/AS1G08_021T01_9000001880_12732cztM0_level2.evt modeM0/AS1G08_021T01_9000001880_12732cztM0_level2_quad_clean.evt
Size (bytes)534,458,88078,848,640
Size509.7 MB 75.2 MB
Events in quadrant A2,926,262506,499
Events in quadrant B4,499,958477,372
Events in quadrant C2,758,268506,445
Events in quadrant D5,583,589466,724

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128712
B0172961
C0125291
D0207651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6159771.250203%
B615961810.034096%
C6159440.714402%
D61595899.563241%

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 7125 6161 22 22 0.31% 0.36%
B 7125 6161 494 494 6.93% 8.02%
C 7125 6161 0 0 0.00% 0.00%
D 7125 6161 612 612 8.59% 9.93%

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 9 143 102614 695.5 723 706 146.5
A 12 189 21995 145.29 723 706 146.5
A 15 239 13048 84.23 723 706 146.5
B 4 239 1680668 12817.76 696 678 131.1
B 0 214 21680 160.24 696 678 131.1
B 3 209 16881 123.62 696 678 131.1
C 13 61 5159 27.11 707 710 164.1
C 3 202 1724 6.18 707 710 164.1
C 15 208 1543 5.08 707 710 164.1
D 1 52 2662596 16419.94 683 664 162.1
D 10 199 207637 1276.7 683 664 162.1
D 2 136 89521 548.11 683 664 162.1

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