ASTROSAT CZTI

Data Quality Report

Orbit 03572

Creation date: 2024-06-27T14:31:06.129795
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_03572cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03572cztM0_level2_quad_clean.evt
Size (bytes)454,199,04079,470,720
Size433.2 MB 75.8 MB
Events in quadrant A3,271,295491,415
Events in quadrant B3,671,920490,998
Events in quadrant C3,118,391482,317
Events in quadrant D3,232,173468,451

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142783
B0151212
C0139892
D0144742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6789981.443512%
B67891181.738106%
C6789640.942701%
D6789901.325674%

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 7869 6789 4 4 0.05% 0.06%
B 7868 6788 17 17 0.22% 0.25%
C 7868 6788 0 0 0.00% 0.00%
D 7868 6788 33 33 0.42% 0.49%

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 0 118 100473 596.78 809 792 167.0
A 15 174 19979 114.87 809 792 167.0
A 0 226 17555 100.36 809 792 167.0
B 15 204 250851 1588.82 812 793 157.4
B 14 167 61695 386.96 812 793 157.4
B 4 81 45837 286.2 812 793 157.4
C 15 208 68953 375.46 777 780 181.6
C 8 208 7070 34.64 777 780 181.6
C 13 61 6817 33.25 777 780 181.6
D 1 84 110046 579.85 778 753 188.5
D 13 223 75393 396.0 778 753 188.5
D 5 233 18339 93.3 778 753 188.5

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