ASTROSAT CZTI

Data Quality Report

Orbit 08080

Creation date: 2024-06-27T15:27:41.235845
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_055T01_9000001114_08080cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08080cztM0_level2_quad_clean.evt
Size (bytes)544,412,160102,300,480
Size519.2 MB 97.6 MB
Events in quadrant A3,368,066638,285
Events in quadrant B3,534,866661,419
Events in quadrant C4,937,607659,839
Events in quadrant D4,148,054626,572

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152774
B0156162
C0197892
D0176492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7354590.802284%
B7354941.278216%
C7354901.223824%
D73541682.284471%

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 7690 7357 1 1 0.01% 0.01%
B 7690 7357 3 3 0.04% 0.04%
C 7690 7357 31 31 0.40% 0.42%
D 7690 7357 91 91 1.18% 1.24%

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 13 248 16661 88.77 867 847 178.1
A 13 170 9530 48.74 867 847 178.1
A 0 226 8120 40.83 867 847 178.1
B 10 16 36220 207.11 883 860 170.7
B 11 51 28902 164.24 883 860 170.7
B 12 111 18420 102.85 883 860 170.7
C 9 68 1511519 7508.29 860 862 201.2
C 1 16 70893 348.07 860 862 201.2
C 13 61 6360 27.33 860 862 201.2
D 1 52 637219 3079.78 845 818 206.6
D 13 105 152927 736.11 845 818 206.6
D 7 71 105343 505.83 845 818 206.6

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