ASTROSAT CZTI

Data Quality Report

Orbit 10181

Creation date: 2024-06-27T15:56:03.362744
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/AS1A03_133T01_9000001464_10181cztM0_level2.evt modeM0/AS1A03_133T01_9000001464_10181cztM0_level2_quad_clean.evt
Size (bytes)568,704,960111,211,200
Size542.4 MB 106.1 MB
Events in quadrant A3,810,844704,918
Events in quadrant B4,181,158711,362
Events in quadrant C3,624,013705,838
Events in quadrant D5,046,843672,062

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171103
B0179712
C0168352
D0202682

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8264490.592933%
B82641011.222168%
C8264250.302517%
D8264690.834947%

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 9019 8266 3 3 0.03% 0.04%
B 9019 8266 11 11 0.12% 0.13%
C 9019 8266 0 0 0.00% 0.00%
D 9019 8266 50 50 0.55% 0.60%

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 13 251 32867 163.24 958 939 195.6
A 3 1 28621 141.54 958 939 195.6
A 8 15 19763 96.25 958 939 195.6
B 11 51 157140 846.05 963 941 184.6
B 5 255 81635 437.08 963 941 184.6
B 0 219 61714 329.17 963 941 184.6
C 14 67 7252 29.52 926 931 214.1
C 13 61 6975 28.23 926 931 214.1
C 8 222 3215 10.67 926 931 214.1
D 8 195 630535 2818.55 919 892 223.4
D 1 52 333326 1488.12 919 892 223.4
D 7 71 194628 867.25 919 892 223.4

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