ASTROSAT CZTI

Data Quality Report

Orbit 05108

Creation date: 2024-06-27T14:51:22.746917
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/AS1G05_137T01_9000000646_05108cztM0_level2.evt modeM0/AS1G05_137T01_9000000646_05108cztM0_level2_quad_clean.evt
Size (bytes)464,889,60068,941,440
Size443.4 MB 65.7 MB
Events in quadrant A3,110,064426,728
Events in quadrant B3,191,902418,043
Events in quadrant C2,951,428409,082
Events in quadrant D4,394,634390,696

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132682
B0135271
C0130811
D0171101

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6347751.181661%
B63471021.607058%
C6347510.803529%
D63474446.995431%

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 7587 6348 0 0 0.00% 0.00%
B 7587 6348 3 3 0.04% 0.05%
C 7587 6348 1 1 0.01% 0.02%
D 7586 6347 321 321 4.23% 5.06%

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 13 251 49250 304.44 787 771 159.2
A 0 50 20235 122.23 787 771 159.2
A 13 14 10116 58.68 787 771 159.2
B 4 80 73136 475.75 793 776 152.1
B 15 204 17535 110.19 793 776 152.1
B 0 219 15930 99.63 793 776 152.1
C 12 4 8096 42.11 753 756 174.3
C 13 61 6196 31.21 753 756 174.3
C 1 16 2893 12.26 753 756 174.3
D 13 239 742724 4176.19 730 707 177.7
D 12 22 371738 2088.22 730 707 177.7
D 8 195 203885 1143.52 730 707 177.7

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