ASTROSAT CZTI

Data Quality Report

Orbit 07666

Creation date: 2024-06-27T15:22:27.671004
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/AS1G06_114T01_9000001056_07666cztM0_level2.evt modeM0/AS1G06_114T01_9000001056_07666cztM0_level2_quad_clean.evt
Size (bytes)589,322,880112,438,080
Size562.0 MB 107.2 MB
Events in quadrant A4,070,119704,132
Events in quadrant B4,572,442714,714
Events in quadrant C4,230,405709,158
Events in quadrant D4,382,099670,765

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178213
B0193352
C0181752
D0189772

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8739240.274631%
B87391311.499027%
C8739250.286074%
D8739670.766678%

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 10579 8741 0 0 0.00% 0.00%
B 10579 8741 50 50 0.47% 0.57%
C 10579 8741 0 0 0.00% 0.00%
D 10579 8741 28 28 0.26% 0.32%

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 13 248 14984 64.41 1051 1026 216.7
A 0 226 10179 42.24 1051 1026 216.7
A 12 194 9074 37.14 1051 1026 216.7
B 10 245 178475 877.68 1054 1029 202.2
B 4 239 137735 676.18 1054 1029 202.2
B 0 229 42977 207.48 1054 1029 202.2
C 9 68 206995 858.82 1026 1031 239.8
C 13 61 7763 28.07 1026 1031 239.8
C 8 208 6029 20.84 1026 1031 239.8
D 13 104 273965 1085.12 1021 991 251.6
D 2 152 77474 304.03 1021 991 251.6
D 5 233 34792 134.36 1021 991 251.6

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