ASTROSAT CZTI

Data Quality Report

Orbit 10203

Creation date: 2024-06-27T15:56:17.384727
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/AS1A03_050T01_9000001468_10203cztM0_level2.evt modeM0/AS1A03_050T01_9000001468_10203cztM0_level2_quad_clean.evt
Size (bytes)548,225,280137,298,240
Size522.8 MB 130.9 MB
Events in quadrant A3,499,084935,359
Events in quadrant B3,602,689949,076
Events in quadrant C3,254,445941,749
Events in quadrant D5,800,339873,054

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145452
B0149071
C0139871
D0219331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65851221.852696%
B65851161.761579%
C6585650.987092%
D65855037.638573%

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 7835 6585 12 12 0.15% 0.18%
B 7835 6585 11 11 0.14% 0.17%
C 7835 6585 0 0 0.00% 0.00%
D 7835 6585 392 392 5.00% 5.95%

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 15 84912 493.24 856 840 170.4
A 15 223 74337 431.19 856 840 170.4
A 15 239 34897 199.81 856 840 170.4
B 4 239 105184 664.97 849 829 156.9
B 0 214 69027 434.57 849 829 156.9
B 5 255 42245 263.91 849 829 156.9
C 4 175 12949 65.19 827 833 185.9
C 14 67 12469 62.6 827 833 185.9
C 13 61 6209 28.92 827 833 185.9
D 1 52 1504182 7135.28 806 795 210.7
D 6 112 523128 2479.06 806 795 210.7
D 8 195 356587 1688.64 806 795 210.7

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