ASTROSAT CZTI

Data Quality Report

Orbit 14333

Creation date: 2024-06-27T16:53:39.514021
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_078T01_9000002110_14333cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14333cztM0_level2_quad_clean.evt
Size (bytes)735,128,64077,512,320
Size701.1 MB 73.9 MB
Events in quadrant A3,751,653483,310
Events in quadrant B8,699,716440,303
Events in quadrant C3,748,082471,190
Events in quadrant D5,574,388447,715

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155954
B0306943
C0151713
D0215463

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72331201.659063%
B7233210529.102724%
C72331071.479331%
D72336188.544173%

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 7609 7234 0 0 0.00% 0.00%
B 7609 7234 1642 1642 21.58% 22.70%
C 7609 7235 0 0 0.00% 0.00%
D 7609 7234 196 196 2.58% 2.71%

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 148403 804.02 899 880 183.5
A 12 189 139871 757.52 899 880 183.5
A 0 226 7801 37.72 899 880 183.5
B 10 245 5264807 34025.19 790 769 154.7
B 10 16 214053 1378.6 790 769 154.7
B 0 189 59924 382.36 790 769 154.7
C 3 233 380228 1875.17 864 869 202.3
C 13 61 6098 25.85 864 869 202.3
C 14 234 3023 10.65 864 869 202.3
D 13 122 1632391 8021.18 847 828 203.4
D 5 222 319931 1568.79 847 828 203.4
D 2 120 140657 687.43 847 828 203.4

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