ASTROSAT CZTI

Data Quality Report

Orbit 09730

Creation date: 2024-06-27T15:49:57.445931
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/AS1A02_029T01_9000001386_09730cztM0_level2.evt modeM0/AS1A02_029T01_9000001386_09730cztM0_level2_quad_clean.evt
Size (bytes)588,510,72095,990,400
Size561.2 MB 91.5 MB
Events in quadrant A4,483,179582,618
Events in quadrant B4,177,825593,495
Events in quadrant C3,970,601589,812
Events in quadrant D4,626,191562,933

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018972247
B017906245
C017676235
D019643231

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01724
C01722
D01724

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83264245.092481%
B83214164.999399%
C83213203.845692%
D83275026.028582%

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 9286 8423 0 0 0.00% 0.00%
B 9286 8418 3 3 0.03% 0.04%
C 9286 8417 0 0 0.00% 0.00%
D 9286 8421 109 109 1.17% 1.29%

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 1 162 230433 1060.77 1038 1012 216.3
A 1 178 93155 426.04 1038 1012 216.3
A 1 161 87401 399.44 1038 1012 216.3
B 0 219 36647 173.66 1041 1012 205.2
B 10 245 29999 141.26 1041 1012 205.2
B 0 214 24047 112.25 1041 1012 205.2
C 13 61 7699 28.06 1017 1018 238.1
C 8 222 3275 9.48 1017 1018 238.1
C 8 128 3056 8.56 1017 1018 238.1
D 1 52 333414 1379.05 998 971 241.1
D 12 233 271046 1120.33 998 971 241.1
D 10 253 169310 698.31 998 971 241.1

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