ASTROSAT CZTI

Data Quality Report

Orbit 29512

Creation date: 2024-06-27T20:04:51.081469
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_048T05_9000004250_29512cztM0_level2.evt modeM0/AS1A10_048T05_9000004250_29512cztM0_level2_quad_clean.evt
Size (bytes)730,123,200110,862,720
Size696.3 MB 105.7 MB
Events in quadrant A3,321,638736,468
Events in quadrant B3,470,868765,087
Events in quadrant C3,930,779731,400
Events in quadrant D10,934,859655,863

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141152
B0145412
C0157632
D0371236

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6724120.178465%
B6724360.535396%
C67241782.647234%
D6723165024.542615%

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 7944 6725 0 0 0.00% 0.00%
B 7944 6725 5 5 0.06% 0.07%
C 7944 6725 69 69 0.87% 1.03%
D 7943 6724 1940 1940 24.42% 28.85%

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 13 254 12247 66.49 859 845 171.5
A 3 137 8039 41.95 859 845 171.5
A 0 226 7244 37.32 859 845 171.5
B 15 222 29544 173.48 867 842 165.4
B 12 111 19915 115.28 867 842 165.4
B 5 172 19059 110.1 867 842 165.4
C 7 247 424838 2174.57 836 844 195.0
C 14 238 141665 722.24 836 844 195.0
C 3 233 71503 362.39 836 844 195.0
D 8 195 6519019 35699.69 764 746 182.6
D 12 33 1274933 6978.55 764 746 182.6
D 7 238 90277 490.35 764 746 182.6

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