ASTROSAT CZTI

Data Quality Report

Orbit 03555

Creation date: 2024-06-27T14:30:54.924251
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/AS1G05_045T01_9000000468_03555cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03555cztM0_level2_quad_clean.evt
Size (bytes)575,766,72067,527,360
Size549.1 MB 64.4 MB
Events in quadrant A3,027,292405,829
Events in quadrant B3,392,730403,367
Events in quadrant C7,645,468378,630
Events in quadrant D2,917,562389,855

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137232
B0142461
C0273331
D0138071

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66921161.733413%
B66921251.867902%
C6692131719.680215%
D6692931.389719%

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 7507 6692 0 0 0.00% 0.00%
B 7507 6692 14 14 0.19% 0.21%
C 7507 6692 1325 1325 17.65% 19.80%
D 7507 6692 7 7 0.09% 0.10%

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 0 50 35630 221.83 767 750 157.2
A 0 118 15633 94.65 767 750 157.2
A 7 16 9889 58.12 767 750 157.2
B 15 204 140274 927.88 776 757 150.4
B 4 81 109821 725.35 776 757 150.4
B 0 182 47667 311.98 776 757 150.4
C 1 192 4778609 28303.32 718 721 168.8
C 2 53 20685 118.26 718 721 168.8
C 1 16 13859 77.83 718 721 168.8
D 13 223 29811 163.72 738 716 177.7
D 4 95 19736 107.02 738 716 177.7
D 7 223 18862 102.11 738 716 177.7

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