ASTROSAT CZTI

Data Quality Report

Orbit 28984

Creation date: 2024-06-27T19:58:49.652428
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_073T06_9000004156_28984cztM0_level2.evt modeM0/AS1A10_073T06_9000004156_28984cztM0_level2_quad_clean.evt
Size (bytes)587,396,16079,977,600
Size560.2 MB 76.3 MB
Events in quadrant A4,006,904474,584
Events in quadrant B4,047,697486,246
Events in quadrant C3,933,002457,539
Events in quadrant D5,250,578439,040

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170272
B0172652
C0169512
D0209962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81352823.466503%
B81353564.376152%
C81362883.539823%
D81363424.203540%

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 8530 8136 0 0 0.00% 0.00%
B 8530 8136 1 1 0.01% 0.01%
C 8531 8137 0 0 0.00% 0.00%
D 8531 8137 107 107 1.25% 1.31%

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 6 16 121014 593.42 1000 977 202.3
A 13 254 13220 60.53 1000 977 202.3
A 13 6 11350 51.28 1000 977 202.3
B 10 245 108597 549.85 997 967 195.7
B 12 111 24900 122.27 997 967 195.7
B 11 111 22765 111.36 997 967 195.7
C 14 238 154018 669.09 964 965 228.7
C 2 114 19340 80.33 964 965 228.7
C 13 61 6580 24.55 964 965 228.7
D 7 80 557239 2423.23 956 927 229.6
D 8 195 542320 2358.24 956 927 229.6
D 1 52 334894 1454.72 956 927 229.6

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