ASTROSAT CZTI

Data Quality Report

Orbit 05750

Creation date: 2024-06-27T14:58:41.008975
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/AS1A02_149T01_9000000740_05750cztM0_level2.evt modeM0/AS1A02_149T01_9000000740_05750cztM0_level2_quad_clean.evt
Size (bytes)476,648,64083,053,440
Size454.6 MB 79.2 MB
Events in quadrant A3,398,906504,338
Events in quadrant B3,631,536506,085
Events in quadrant C3,338,281512,527
Events in quadrant D3,575,166489,134

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01462
B01462
C01450
D01462

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015229150
B015562151
C015181129
D015723169

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72231892.616641%
B72251632.256055%
C7233530.732753%
D72221051.453891%

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 7296 7293 1 1 0.01% 0.01%
B 7296 7294 5 5 0.07% 0.07%
C 7296 7295 1 1 0.01% 0.01%
D 7296 7293 26 26 0.36% 0.36%

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 15 236 15070 77.92 877 854 182.5
A 0 226 8739 43.22 877 854 182.5
A 12 194 8604 42.48 877 854 182.5
B 11 51 52490 297.72 882 859 173.4
B 15 204 40248 227.13 882 859 173.4
B 0 219 36887 207.75 882 859 173.4
C 13 61 6840 30.03 852 857 199.3
C 5 250 6118 26.4 852 857 199.3
C 14 67 4994 20.76 852 857 199.3
D 2 14 81173 381.13 854 825 210.8
D 5 233 72203 338.58 854 825 210.8
D 8 195 44206 205.78 854 825 210.8

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