ASTROSAT CZTI

Data Quality Report

Orbit 00932

Creation date: 2024-06-27T14:04:57.427820
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/AS1P01_163T03_9000000186_00932cztM0_level2.evt modeM0/AS1P01_163T03_9000000186_00932cztM0_level2_quad_clean.evt
Size (bytes)521,893,44040,057,920
Size497.7 MB 38.2 MB
Events in quadrant A3,794,812246,520
Events in quadrant B3,877,403248,699
Events in quadrant C3,894,500239,837
Events in quadrant D4,008,170233,281

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137210
B0139970
C0140360
D0143500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A344700.000000%
B344710.029011%
C344710.029011%
D3447421.218451%

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 3447 3447 34 34 0.99% 0.99%
B 3447 3447 44 44 1.28% 1.28%
C 3447 3447 25 25 0.73% 0.73%
D 3447 3447 149 149 4.32% 4.32%

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 14 170 114561 487.82 959 967 232.9
A 3 111 3155 9.4 959 967 232.9
A 11 79 3070 9.03 959 967 232.9
B 15 22 14593 56.97 1011 1014 238.4
B 5 249 7483 27.14 1011 1014 238.4
B 0 182 6770 24.15 1011 1014 238.4
C 15 241 124123 465.18 950 985 264.7
C 9 144 27033 98.4 950 985 264.7
C 3 111 12784 44.57 950 985 264.7
D 12 188 638849 2305.66 898 928 276.7
D 13 171 9585 31.29 898 928 276.7
D 13 169 4789 13.95 898 928 276.7

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