ASTROSAT CZTI

Data Quality Report

Orbit 45059

Creation date: 2024-06-27T23:09:29.993740
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/AS1A13_020T01_9000006040_45059cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45059cztM0_level2_quad_clean.evt
Size (bytes)863,461,440117,601,920
Size823.5 MB 112.2 MB
Events in quadrant A6,731,706864,119
Events in quadrant B4,274,826893,482
Events in quadrant C4,034,763873,523
Events in quadrant D16,286,369359,585

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259750
B0184680
C0180160
D0539964

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81963634.428990%
B81962763.367496%
C81961281.561737%
D8196485359.211811%

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 8196 8196 18 18 0.22% 0.22%
B 8196 8196 32 32 0.39% 0.39%
C 8196 8196 47 47 0.57% 0.57%
D 8196 8196 4096 4096 49.98% 49.98%

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 10 83 2835138 14130.59 956 936 200.6
A 13 248 120418 595.71 956 936 200.6
A 0 243 40963 199.56 956 936 200.6
B 5 255 167387 877.02 953 922 189.8
B 0 155 106146 554.37 953 922 189.8
B 0 168 77839 405.24 953 922 189.8
C 14 254 186120 842.32 939 944 219.8
C 1 3 98796 445.11 939 944 219.8
C 12 250 55649 248.84 939 944 219.8
D 13 174 5616781 30827.45 710 686 182.2
D 11 241 3133747 17197.77 710 686 182.2
D 12 33 1159410 6360.38 710 686 182.2

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