ASTROSAT CZTI

Data Quality Report

Orbit 30584

Creation date: 2024-06-27T20:17:18.132605
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/AS1A10_103T02_9000004406_30584cztM0_level2.evt modeM0/AS1A10_103T02_9000004406_30584cztM0_level2_quad_clean.evt
Size (bytes)570,735,36090,518,400
Size544.3 MB 86.3 MB
Events in quadrant A3,745,060599,516
Events in quadrant B5,377,716595,604
Events in quadrant C3,963,232542,603
Events in quadrant D3,777,238568,570

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151092
B0202622
C0158112
D0152932

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62212183.504260%
B62212504.018647%
C62214567.330011%
D62211312.105771%

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 7446 6222 53 53 0.71% 0.85%
B 7446 6222 46 46 0.62% 0.74%
C 7446 6221 115 115 1.54% 1.85%
D 7446 6222 25 25 0.34% 0.40%

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 0 13 310593 1781.05 886 873 173.9
A 8 192 18057 98.82 886 873 173.9
A 13 254 10622 56.06 886 873 173.9
B 6 159 1707401 10730.99 867 848 159.0
B 5 255 145339 908.58 867 848 159.0
B 0 229 86666 539.63 867 848 159.0
C 0 10 337896 1816.76 816 825 185.5
C 14 238 190812 1024.0 816 825 185.5
C 3 233 143175 767.25 816 825 185.5
D 1 52 197894 985.96 864 841 199.9
D 8 195 128443 638.46 864 841 199.9
D 13 249 47227 232.09 864 841 199.9

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