ASTROSAT CZTI

Data Quality Report

Orbit 22411

Creation date: 2024-06-27T18:40:39.155321
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/AS1T03_156T01_9000003312_22411cztM0_level2.evt modeM0/AS1T03_156T01_9000003312_22411cztM0_level2_quad_clean.evt
Size (bytes)558,486,72096,511,680
Size532.6 MB 92.0 MB
Events in quadrant A3,868,708597,956
Events in quadrant B4,006,219603,989
Events in quadrant C3,949,411581,983
Events in quadrant D4,531,369567,225

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169803
B0171883
C0170573
D0188923

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82151942.361534%
B82162623.188900%
C82152322.824102%
D82152152.617164%

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 9000 8217 0 0 0.00% 0.00%
B 9001 8218 0 0 0.00% 0.00%
C 9000 8219 0 0 0.00% 0.00%
D 9000 8218 56 56 0.62% 0.68%

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 13 254 11307 50.83 1003 979 203.2
A 3 137 9009 39.52 1003 979 203.2
A 0 226 8611 37.56 1003 979 203.2
B 12 111 23987 119.4 1004 977 192.7
B 11 111 21217 105.03 1004 977 192.7
B 14 111 18277 89.77 1004 977 192.7
C 14 238 151374 651.43 973 976 230.9
C 13 61 6852 25.45 973 976 230.9
C 9 54 2538 6.77 973 976 230.9
D 1 52 466782 1963.64 976 947 237.2
D 12 227 113469 474.32 976 947 237.2
D 13 249 105586 441.09 976 947 237.2

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