ASTROSAT CZTI

Data Quality Report

Orbit 45480

Creation date: 2024-06-27T23:12:40.974339
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/AS1A13_042T03_9000006094_45480cztM0_level2.fits modeM0/AS1A13_042T03_9000006094_45480cztM0_level2_quad_clean.evt
Size (bytes)495,475,200114,327,360
Size472.5 MB 109.0 MB
Events in quadrant A5,658,348755,405
Events in quadrant B3,462,515789,278
Events in quadrant C3,618,102749,245
Events in quadrant D5,031,818656,971

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223021
B0154340
C0162930
D0199750

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73371962.671392%
B73381281.744345%
C73381642.234941%
D73384536.173344%

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 7337 7337 0 0 0.00% 0.00%
B 7338 7338 12 12 0.16% 0.16%
C 7338 7338 105 105 1.43% 1.43%
D 7338 7338 296 296 4.03% 4.03%

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 10 83 2487419 14408.06 820 800 172.6
A 3 137 9779 52.03 820 800 172.6
A 13 254 6625 33.75 820 800 172.6
B 3 112 74234 448.06 817 793 163.9
B 15 85 56878 342.17 817 793 163.9
B 5 172 34956 208.43 817 793 163.9
C 14 254 311493 1647.59 797 801 188.6
C 3 233 146044 770.22 797 801 188.6
C 12 2 35969 186.49 797 801 188.6
D 11 224 717970 3633.39 784 759 197.4
D 11 241 625505 3164.96 784 759 197.4
D 1 52 522797 2644.64 784 759 197.4

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