ASTROSAT CZTI

Data Quality Report

Orbit 05181

Creation date: 2024-06-27T14:52:22.350251
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_214T01_9000000652_05181cztM0_level2.evt modeM0/AS1G05_214T01_9000000652_05181cztM0_level2_quad_clean.evt
Size (bytes)442,949,76056,301,120
Size422.4 MB 53.7 MB
Events in quadrant A3,270,902315,858
Events in quadrant B3,294,726322,204
Events in quadrant C3,117,793318,831
Events in quadrant D3,294,304298,996

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136842
B0136201
C0132801
D0141861

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6431310.482040%
B6431490.761934%
C6431240.373192%
D6431851.321723%

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 7726 6432 4 4 0.05% 0.06%
B 7726 6432 2 2 0.03% 0.03%
C 7726 6432 7 7 0.09% 0.11%
D 7726 6432 62 62 0.80% 0.96%

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 0 247 168090 1035.71 798 784 161.5
A 0 226 22530 134.62 798 784 161.5
A 0 50 15795 92.93 798 784 161.5
B 4 80 61460 395.92 813 798 153.2
B 15 204 39870 255.01 813 798 153.2
B 0 219 19879 124.54 813 798 153.2
C 9 16 40334 220.23 775 781 179.6
C 1 16 18925 101.03 775 781 179.6
C 8 128 16478 87.4 775 781 179.6
D 2 33 221196 1184.58 758 737 186.1
D 7 237 64934 344.95 758 737 186.1
D 14 34 58380 309.73 758 737 186.1

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