ASTROSAT CZTI

Data Quality Report

Orbit 06793

Creation date: 2024-06-27T15:11:45.321261
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/AS1G06_086T02_9000000936_06793cztM0_level2.evt modeM0/AS1G06_086T02_9000000936_06793cztM0_level2_quad_clean.evt
Size (bytes)504,699,840100,235,520
Size481.3 MB 95.6 MB
Events in quadrant A3,431,632628,951
Events in quadrant B4,093,269641,603
Events in quadrant C3,446,167626,876
Events in quadrant D3,791,310603,422

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157073
B0176092
C0157482
D0164922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7681550.716053%
B76812793.632340%
C7681570.742091%
D7681410.533785%

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 7876 7683 0 0 0.00% 0.00%
B 7876 7683 149 149 1.89% 1.94%
C 7876 7683 2 2 0.03% 0.03%
D 7876 7683 3 3 0.04% 0.04%

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 8 15 15163 78.39 884 863 182.4
A 13 248 11809 60.0 884 863 182.4
A 0 226 8332 40.94 884 863 182.4
B 0 228 618962 3574.88 884 860 172.9
B 4 81 47488 269.68 884 860 172.9
B 12 111 17625 96.96 884 860 172.9
C 9 247 40373 194.96 864 867 202.6
C 12 16 23153 109.98 864 867 202.6
C 12 4 6985 30.19 864 867 202.6
D 8 195 486656 2281.22 860 832 213.0
D 2 14 27399 124.75 860 832 213.0
D 13 169 26159 118.92 860 832 213.0

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