ASTROSAT CZTI

Data Quality Report

Orbit 04186

Creation date: 2024-06-27T14:38:32.227569
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/AS1G05_240T01_9000000536_04186cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04186cztM0_level2_quad_clean.evt
Size (bytes)574,444,80071,372,160
Size547.8 MB 68.1 MB
Events in quadrant A5,942,102413,504
Events in quadrant B3,655,462425,855
Events in quadrant C3,671,502416,716
Events in quadrant D3,642,459406,075

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225913
B0154462
C0159962
D0158912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71534316.025444%
B71531772.474486%
C71531712.390605%
D71531211.691598%

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 8703 7155 202 202 2.32% 2.82%
B 8703 7155 21 21 0.24% 0.29%
C 8703 7155 30 30 0.34% 0.42%
D 8703 7155 35 35 0.40% 0.49%

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 0 199 1894747 10838.79 848 828 174.7
A 3 1 263972 1505.96 848 828 174.7
A 0 226 182423 1039.26 848 828 174.7
B 3 0 140658 829.35 867 846 168.6
B 5 200 44145 256.84 867 846 168.6
B 10 16 41098 238.77 867 846 168.6
C 9 144 433443 2213.76 829 832 195.4
C 13 61 6783 30.45 829 832 195.4
C 12 4 2188 6.94 829 832 195.4
D 13 46 119096 577.49 831 806 204.8
D 13 239 115926 562.02 831 806 204.8
D 9 85 82052 396.64 831 806 204.8

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