ASTROSAT CZTI

Data Quality Report

Orbit 07198

Creation date: 2024-06-27T15:16:41.007714
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/AS1A02_073T02_9000000982_07198cztM0_level2.evt modeM0/AS1A02_073T02_9000000982_07198cztM0_level2_quad_clean.evt
Size (bytes)565,156,80087,744,960
Size539.0 MB 83.7 MB
Events in quadrant A3,737,309529,940
Events in quadrant B4,058,343541,198
Events in quadrant C3,789,294533,594
Events in quadrant D4,995,564503,400

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165123
B0170992
C0166952
D0201922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78872332.954228%
B78872633.334601%
C78872202.789400%
D78874455.642196%

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 7917 7887 0 0 0.00% 0.00%
B 7917 7887 8 8 0.10% 0.10%
C 7917 7887 2 2 0.03% 0.03%
D 7917 7887 157 157 1.98% 1.99%

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 14 11382 52.08 965 941 200.5
A 0 226 9218 41.29 965 941 200.5
A 12 194 8693 38.67 965 941 200.5
B 0 214 89626 464.93 969 945 190.7
B 0 219 84704 439.12 969 945 190.7
B 4 239 62420 322.3 969 945 190.7
C 9 68 78262 348.49 942 946 221.9
C 14 67 16567 70.41 942 946 221.9
C 8 128 13939 58.56 942 946 221.9
D 2 216 943524 4038.05 932 898 233.4
D 8 195 213965 912.74 932 898 233.4
D 2 136 120025 510.32 932 898 233.4

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