ASTROSAT CZTI

Data Quality Report

Orbit 17329

Creation date: 2024-06-27T17:35:03.976816
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/AS1A05_169T01_9000002558_17329cztM0_level2.evt modeM0/AS1A05_169T01_9000002558_17329cztM0_level2_quad_clean.evt
Size (bytes)470,952,00099,051,840
Size449.1 MB 94.5 MB
Events in quadrant A3,350,265642,677
Events in quadrant B3,436,312643,000
Events in quadrant C3,406,141603,839
Events in quadrant D3,576,794604,978

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149352
B0150312
C0149592
D0159142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7261190.261672%
B7261510.702383%
C7261680.936510%
D7261420.578433%

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 7806 7262 0 0 0.00% 0.00%
B 7806 7262 0 0 0.00% 0.00%
C 7806 7262 0 0 0.00% 0.00%
D 7806 7262 29 29 0.37% 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 0 226 7593 38.46 871 854 175.2
A 3 137 6920 34.62 871 854 175.2
A 12 194 6003 29.39 871 854 175.2
B 12 111 21044 120.15 870 847 168.1
B 4 173 19327 109.94 870 847 168.1
B 11 111 18426 104.58 870 847 168.1
C 14 238 130706 664.81 828 833 195.4
C 3 233 28816 143.24 828 833 195.4
C 9 54 21067 103.57 828 833 195.4
D 5 222 354667 1735.35 835 810 203.9
D 1 52 30328 144.76 835 810 203.9
D 2 234 24019 113.82 835 810 203.9

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