ASTROSAT CZTI

Data Quality Report

Orbit 16330

Creation date: 2024-06-27T17:21:17.213280
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/AS1C04_007T01_9000002408_16330cztM0_level2.evt modeM0/AS1C04_007T01_9000002408_16330cztM0_level2_quad_clean.evt
Size (bytes)175,394,88038,355,840
Size167.3 MB 36.6 MB
Events in quadrant A1,210,771250,764
Events in quadrant B1,470,147252,218
Events in quadrant C1,221,684247,288
Events in quadrant D1,247,343241,730

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050052
B057871
C049971
D051961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23441185.034130%
B23441566.655290%
C23441054.479522%
D2344833.540956%

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 2960 2345 0 0 0.00% 0.00%
B 2960 2345 13 13 0.44% 0.55%
C 2960 2345 0 0 0.00% 0.00%
D 2960 2346 0 0 0.00% 0.00%

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 15 174 5600 80.46 313 306 65.8
A 0 226 2765 37.37 313 306 65.8
A 12 194 2337 30.87 313 306 65.8
B 3 112 208360 3348.22 308 301 62.1
B 4 173 27102 431.3 308 301 62.1
B 0 198 9203 143.26 308 301 62.1
C 14 238 45438 625.63 300 302 72.1
C 3 233 6569 86.87 300 302 72.1
C 13 61 2173 25.93 300 302 72.1
D 12 144 70844 912.05 306 296 77.4
D 2 234 9803 122.91 306 296 77.4
D 1 52 5835 71.61 306 296 77.4

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