ASTROSAT CZTI

Data Quality Report

Orbit 22363

Creation date: 2024-06-27T18:39:50.307653
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/AS1A07_007T04_9000003310_22363cztM0_level2.evt modeM0/AS1A07_007T04_9000003310_22363cztM0_level2_quad_clean.evt
Size (bytes)458,625,600101,116,800
Size437.4 MB 96.4 MB
Events in quadrant A3,117,804668,860
Events in quadrant B3,385,103691,892
Events in quadrant C3,229,146654,145
Events in quadrant D3,736,886615,077

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130722
B0137962
C0133452
D0153803

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6202220.354724%
B6202691.112544%
C6202791.273783%
D62011161.870666%

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 7582 6203 0 0 0.00% 0.00%
B 7582 6203 18 18 0.24% 0.29%
C 7582 6203 1 1 0.01% 0.02%
D 7581 6202 94 94 1.24% 1.52%

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 13 254 9412 54.08 806 793 159.4
A 0 226 6967 38.74 806 793 159.4
A 3 137 6507 35.85 806 793 159.4
B 3 64 132288 880.88 816 798 149.3
B 0 197 20461 131.73 816 798 149.3
B 0 229 19115 122.71 816 798 149.3
C 14 238 126850 684.96 790 796 184.0
C 0 10 15138 77.93 790 796 184.0
C 0 207 10221 51.21 790 796 184.0
D 12 227 441863 2382.09 775 754 185.2
D 1 52 190287 1023.52 775 754 185.2
D 13 172 101844 545.91 775 754 185.2

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