ASTROSAT CZTI

Data Quality Report

Orbit 20357

Creation date: 2024-06-27T18:14:21.644879
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/AS1A05_163T01_9000003010_20357cztM0_level2.evt modeM0/AS1A05_163T01_9000003010_20357cztM0_level2_quad_clean.evt
Size (bytes)522,152,64085,838,400
Size498.0 MB 81.9 MB
Events in quadrant A3,644,950526,258
Events in quadrant B3,766,520528,913
Events in quadrant C3,658,563507,391
Events in quadrant D4,224,003505,053

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157292
B0159222
C0157132
D0176742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76391982.591962%
B76392282.984684%
C76392343.063228%
D76402723.560209%

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 8279 7640 0 0 0.00% 0.00%
B 8279 7639 10 10 0.12% 0.13%
C 8279 7641 3 3 0.04% 0.04%
D 8280 7641 84 84 1.01% 1.10%

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 6 16 9145 43.03 942 918 191.2
A 13 254 8636 40.37 942 918 191.2
A 3 137 8397 39.12 942 918 191.2
B 10 247 48488 261.38 932 905 182.0
B 0 214 26160 138.73 932 905 182.0
B 12 111 23366 123.38 932 905 182.0
C 14 238 140587 659.76 899 906 211.7
C 7 220 11101 48.15 899 906 211.7
C 13 61 6156 24.8 899 906 211.7
D 1 52 491531 2208.04 913 884 222.2
D 7 238 255875 1147.52 913 884 222.2
D 2 234 30289 132.33 913 884 222.2

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