ASTROSAT CZTI

Data Quality Report

Orbit 30403

Creation date: 2024-06-27T20:14:48.213930
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/AS1T04_002T01_9000004374_30403cztM0_level2.evt modeM0/AS1T04_002T01_9000004374_30403cztM0_level2_quad_clean.evt
Size (bytes)637,712,640125,150,400
Size608.2 MB 119.4 MB
Events in quadrant A3,814,852822,910
Events in quadrant B6,452,073821,639
Events in quadrant C4,056,128801,257
Events in quadrant D4,443,216783,109

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168862
B0250502
C0173752
D0192222

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80781351.671206%
B80792813.478153%
C80793894.814952%
D80792533.131576%

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 8508 8080 0 0 0.00% 0.00%
B 8509 8079 0 0 0.00% 0.00%
C 8508 8081 0 0 0.00% 0.00%
D 8509 8082 166 166 1.95% 2.05%

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 8 192 30926 152.19 973 952 196.9
A 14 239 28975 142.29 973 952 196.9
A 13 254 14740 70.01 973 952 196.9
B 6 159 2289255 12177.12 967 938 187.9
B 0 229 347164 1842.42 967 938 187.9
B 12 111 23571 120.44 967 938 187.9
C 14 238 228606 1051.08 928 933 216.6
C 14 254 112461 514.88 928 933 216.6
C 3 233 77843 355.06 928 933 216.6
D 13 249 485602 1985.59 922 905 244.1
D 13 104 130177 529.57 922 905 244.1
D 8 195 126308 513.72 922 905 244.1

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