ASTROSAT CZTI

Data Quality Report

Orbit 32182

Creation date: 2024-06-27T20:37:19.769961
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/AS1A09_131T01_9000004690_32182cztM0_level2.evt modeM0/AS1A09_131T01_9000004690_32182cztM0_level2_quad_clean.evt
Size (bytes)132,197,76019,601,280
Size126.1 MB 18.7 MB
Events in quadrant A813,664126,567
Events in quadrant B1,167,266107,779
Events in quadrant C867,182123,589
Events in quadrant D1,046,389119,161

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179145
B0182152
C0185149
D0183144

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01822314886
B02712622689
C01914315617
D02308318886

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109
B01515
C01111
D01211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1614311.920694%
B1464332.254098%
C1600493.062500%
D1559362.309173%

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 15355 1819 0 0 0.00% 0.00%
B 15131 1587 0 0 0.00% 0.00%
C 15344 1795 0 0 0.00% 0.00%
D 15125 1740 13 13 0.09% 0.75%

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 8356 186.97 207 203 43.6
A 13 6 3341 71.96 207 203 43.6
A 13 254 3165 67.93 207 203 43.6
B 6 159 402093 10481.36 189 184 38.3
B 0 190 9461 241.93 189 184 38.3
B 0 245 4963 124.63 189 184 38.3
C 14 238 38717 799.37 200 200 48.2
C 0 10 17397 356.9 200 200 48.2
C 3 233 15516 317.86 200 200 48.2
D 8 195 103899 2131.9 196 190 48.6
D 14 52 101295 2078.37 196 190 48.6
D 12 218 74647 1530.58 196 190 48.6

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