ASTROSAT CZTI

Data Quality Report

Orbit 32302

Creation date: 2024-06-27T20:38:37.400113
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/AS1A10_005T01_9000004700_32302cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32302cztM0_level2_quad_clean.evt
Size (bytes)520,666,56074,655,360
Size496.5 MB 71.2 MB
Events in quadrant A2,813,420483,453
Events in quadrant B4,627,231470,783
Events in quadrant C3,358,060452,354
Events in quadrant D4,562,274434,143

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123011
B0183131
C0136731
D0177091

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60091151.913796%
B60092083.461474%
C60092644.393410%
D60104367.254576%

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 6009 6009 0 0 0.00% 0.00%
B 6009 6009 19 19 0.32% 0.32%
C 6009 6009 40 40 0.67% 0.67%
D 6010 6010 286 286 4.76% 4.76%

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 13 254 11318 71.07 726 706 149.3
A 13 6 8975 55.38 726 706 149.3
A 3 137 7584 46.07 726 706 149.3
B 6 159 1632317 11748.53 714 694 138.9
B 12 18 61983 441.31 714 694 138.9
B 5 172 41990 297.35 714 694 138.9
C 3 233 279136 1698.27 692 693 164.0
C 2 16 158344 961.54 692 693 164.0
C 14 238 130835 793.76 692 693 164.0
D 8 195 819418 4954.91 688 668 165.2
D 12 233 661031 3996.38 688 668 165.2
D 13 249 216231 1304.54 688 668 165.2

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