ASTROSAT CZTI

Data Quality Report

Orbit 13433

Creation date: 2024-06-27T16:40:43.969339
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_13433cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13433cztM0_level2_quad_clean.evt
Size (bytes)455,866,56090,521,280
Size434.7 MB 86.3 MB
Events in quadrant A3,043,056590,571
Events in quadrant B3,153,826602,663
Events in quadrant C3,064,578580,567
Events in quadrant D4,127,471538,933

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129533
B0132602
C0130532
D0164792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6134440.717313%
B6134731.190088%
C6134540.880339%
D61344327.042713%

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 7430 6135 4 4 0.05% 0.07%
B 7430 6135 5 5 0.07% 0.08%
C 7430 6136 14 14 0.19% 0.23%
D 7430 6135 307 307 4.13% 5.00%

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 15 69 17700 107.82 784 770 157.0
A 1 162 8460 48.97 784 770 157.0
A 0 226 7054 40.02 784 770 157.0
B 0 230 26590 173.73 785 769 148.6
B 4 142 26257 171.49 785 769 148.6
B 12 111 16530 106.04 785 769 148.6
C 14 234 77771 444.27 751 756 173.4
C 3 233 54495 310.0 751 756 173.4
C 13 61 5384 26.7 751 756 173.4
D 13 249 1281342 7478.5 722 703 171.2
D 8 195 94407 547.2 722 703 171.2
D 2 234 21531 121.63 722 703 171.2

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