ASTROSAT CZTI

Data Quality Report

Orbit 10701

Creation date: 2024-06-27T16:02:42.866584
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_053T01_9000001542_10701cztM0_level2.evt modeM0/AS1A03_053T01_9000001542_10701cztM0_level2_quad_clean.evt
Size (bytes)673,850,88094,754,880
Size642.6 MB 90.4 MB
Events in quadrant A4,754,284578,236
Events in quadrant B5,355,417574,374
Events in quadrant C4,075,605579,922
Events in quadrant D5,638,705538,591

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200236
B0215547
C0183613
D0226871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86024985.789351%
B86025966.928621%
C86032062.394514%
D86044084.741980%

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 8859 8605 157 157 1.77% 1.82%
B 8859 8605 135 135 1.52% 1.57%
C 8859 8605 0 0 0.00% 0.00%
D 8859 8605 167 167 1.89% 1.94%

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 4 2 525926 2409.03 1058 1035 217.9
A 15 174 76101 344.52 1058 1035 217.9
A 1 162 24966 109.83 1058 1035 217.9
B 4 239 1013203 4886.11 1055 1029 207.2
B 15 204 63711 302.59 1055 1029 207.2
B 4 81 61019 289.59 1055 1029 207.2
C 14 234 9876 35.97 1038 1043 245.6
C 13 61 7746 27.29 1038 1043 245.6
C 8 128 6791 23.41 1038 1043 245.6
D 2 16 836743 3316.26 1020 991 252.0
D 10 199 457828 1812.73 1020 991 252.0
D 8 195 124440 489.85 1020 991 252.0

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