ASTROSAT CZTI

Data Quality Report

Orbit 32313

Creation date: 2024-06-27T20:38:46.039041
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_005T01_9000004700_32313cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32313cztM0_level2_quad_clean.evt
Size (bytes)682,585,92085,325,760
Size651.0 MB 81.4 MB
Events in quadrant A3,922,918527,698
Events in quadrant B6,300,920517,344
Events in quadrant C4,636,869492,438
Events in quadrant D5,272,588492,961

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167663
B0243822
C0187652
D0210772

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79543224.048278%
B79545296.650742%
C79546758.486296%
D79543924.928338%

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 8509 7956 0 0 0.00% 0.00%
B 8509 7956 13 13 0.15% 0.16%
C 8509 7955 9 9 0.11% 0.11%
D 8509 7956 121 121 1.42% 1.52%

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 12 189 24402 115.54 998 974 202.8
A 13 6 19903 93.35 998 974 202.8
A 13 254 15424 71.27 998 974 202.8
B 6 159 2245442 11838.11 980 952 189.6
B 0 168 63192 328.27 980 952 189.6
B 5 172 54211 280.9 980 952 189.6
C 3 233 477562 2127.15 946 951 224.1
C 14 238 220642 980.5 946 951 224.1
C 14 254 99392 439.35 946 951 224.1
D 8 195 953342 4137.95 963 936 230.2
D 13 249 277043 1199.61 963 936 230.2
D 12 233 154258 666.14 963 936 230.2

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