ASTROSAT CZTI

Data Quality Report

Orbit 29013

Creation date: 2024-06-27T19:59:11.622191
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/AS1A10_103T04_9000004158_29013cztM0_level2.evt modeM0/AS1A10_103T04_9000004158_29013cztM0_level2_quad_clean.evt
Size (bytes)605,946,240105,603,840
Size577.9 MB 100.7 MB
Events in quadrant A4,044,246669,767
Events in quadrant B4,266,565677,856
Events in quadrant C4,159,900643,786
Events in quadrant D5,305,779618,042

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175603
B0179562
C0177522
D0215812

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84701611.900826%
B84712442.880416%
C84712002.360996%
D84711301.534648%

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 8920 8472 0 0 0.00% 0.00%
B 8921 8473 7 7 0.08% 0.08%
C 8921 8473 2 2 0.02% 0.02%
D 8921 8473 42 42 0.47% 0.50%

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 13 254 13759 60.03 1044 1020 212.2
A 1 113 12765 55.35 1044 1020 212.2
A 3 137 10758 45.89 1044 1020 212.2
B 10 246 100590 492.66 1037 1007 202.1
B 0 229 56511 274.59 1037 1007 202.1
B 12 111 26096 124.12 1037 1007 202.1
C 14 238 158609 663.98 1007 1013 237.3
C 2 16 42669 175.51 1007 1013 237.3
C 2 114 20056 80.23 1007 1013 237.3
D 1 52 729963 3025.17 1005 977 241.0
D 8 195 664747 2754.54 1005 977 241.0
D 13 104 54249 221.07 1005 977 241.0

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