ASTROSAT CZTI

Data Quality Report

Orbit 29001

Creation date: 2024-06-27T19:59:01.402156
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_073T06_9000004156_29001cztM0_level2.evt modeM0/AS1A10_073T06_9000004156_29001cztM0_level2_quad_clean.evt
Size (bytes)768,303,360101,701,440
Size732.7 MB 97.0 MB
Events in quadrant A4,069,212649,628
Events in quadrant B4,894,400652,871
Events in quadrant C4,400,327626,063
Events in quadrant D9,322,362553,386

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176782
B0198302
C0181372
D0336802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86041762.045560%
B86044485.206881%
C86042452.847513%
D8604126014.644351%

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 9414 8606 0 0 0.00% 0.00%
B 9414 8606 190 190 2.02% 2.21%
C 9414 8606 0 0 0.00% 0.00%
D 9414 8606 1011 1011 10.74% 11.75%

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 15232 66.42 1046 1020 214.0
A 12 16 11600 49.45 1046 1020 214.0
A 12 210 11270 47.91 1046 1020 214.0
B 10 245 723879 3591.82 1033 1003 201.3
B 10 246 57405 280.25 1033 1003 201.3
B 15 32 38870 188.15 1033 1003 201.3
C 3 233 317232 1345.8 1000 1005 235.0
C 14 238 160677 679.53 1000 1005 235.0
C 2 114 20292 82.08 1000 1005 235.0
D 1 52 4596754 19687.36 970 940 233.4
D 8 195 633850 2711.23 970 940 233.4
D 13 104 199873 852.18 970 940 233.4

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