ASTROSAT CZTI

Data Quality Report

Orbit 14060

Creation date: 2024-06-27T16:49:49.507839
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/AS1A04_162T01_9000002074_14060cztM0_level2.evt modeM0/AS1A04_162T01_9000002074_14060cztM0_level2_quad_clean.evt
Size (bytes)752,613,120131,581,440
Size717.7 MB 125.5 MB
Events in quadrant A3,559,499928,132
Events in quadrant B3,804,460936,004
Events in quadrant C3,464,790897,720
Events in quadrant D11,453,901697,680

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158043
B0163462
C0153762
D0389762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7530781.035857%
B75301201.593625%
C7530440.584329%
D7531323943.008897%

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 7871 7532 11 11 0.14% 0.15%
B 7871 7532 28 28 0.36% 0.37%
C 7871 7532 2 2 0.03% 0.03%
D 7872 7533 3006 3006 38.19% 39.90%

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 12 189 121190 673.82 868 847 178.6
A 9 143 80746 447.37 868 847 178.6
A 8 15 13900 73.09 868 847 178.6
B 4 80 79511 472.74 873 850 166.4
B 0 189 74333 441.62 873 850 166.4
B 10 245 63702 377.73 873 850 166.4
C 3 233 146657 750.2 841 842 194.4
C 0 207 25514 126.93 841 842 194.4
C 8 128 7910 36.36 841 842 194.4
D 1 52 7676879 41397.56 696 681 185.4
D 8 195 625951 3372.07 696 681 185.4
D 12 110 157186 844.03 696 681 185.4

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