ASTROSAT CZTI

Data Quality Report

Orbit 16432

Creation date: 2024-06-27T17:22:35.891404
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/AS1A05_069T03_9000002426_16432cztM0_level2.evt modeM0/AS1A05_069T03_9000002426_16432cztM0_level2_quad_clean.evt
Size (bytes)517,982,40081,685,440
Size494.0 MB 77.9 MB
Events in quadrant A3,793,720494,524
Events in quadrant B4,080,653505,121
Events in quadrant C3,598,270484,614
Events in quadrant D3,708,320471,004

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160873
B0168342
C0154672
D0162212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74443044.083826%
B74443084.137560%
C74442753.694250%
D74442403.224073%

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 8585 7445 38 38 0.44% 0.51%
B 8585 7445 7 7 0.08% 0.09%
C 8585 7445 0 0 0.00% 0.00%
D 8585 7445 28 28 0.33% 0.38%

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 239265 1287.21 911 888 185.2
A 15 223 37327 196.77 911 888 185.2
A 15 239 13872 70.11 911 888 185.2
B 15 35 254120 1433.72 912 888 176.6
B 0 198 68457 382.55 912 888 176.6
B 4 216 61874 345.28 912 888 176.6
C 14 238 133124 642.7 878 884 205.8
C 7 247 19354 89.77 878 884 205.8
C 3 233 15587 71.46 878 884 205.8
D 5 222 265130 1209.28 885 854 218.5
D 12 218 52379 235.77 885 854 218.5
D 10 70 29607 131.57 885 854 218.5

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