ASTROSAT CZTI

Data Quality Report

Orbit 10711

Creation date: 2024-06-27T16:02:49.178976
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_10711cztM0_level2.evt modeM0/AS1A03_053T01_9000001542_10711cztM0_level2_quad_clean.evt
Size (bytes)531,109,44089,501,760
Size506.5 MB 85.4 MB
Events in quadrant A3,145,617588,968
Events in quadrant B5,123,368569,139
Events in quadrant C3,390,926578,297
Events in quadrant D3,997,173533,829

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134323
B0193102
C0142862
D0160022

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6304761.205584%
B63045919.375000%
C63041432.268401%
D63041852.934645%

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 7604 6306 12 12 0.16% 0.19%
B 7604 6306 366 366 4.81% 5.80%
C 7604 6306 62 62 0.82% 0.98%
D 7604 6306 134 134 1.76% 2.12%

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 15 174 42603 260.18 788 775 160.8
A 1 162 24614 148.28 788 775 160.8
A 11 29 14055 82.6 788 775 160.8
B 4 239 1821893 12472.2 771 754 146.0
B 4 81 73915 501.05 771 754 146.0
B 15 204 52163 352.08 771 754 146.0
C 4 254 442652 2526.63 755 760 174.9
C 13 61 5824 28.95 755 760 174.9
C 14 67 4381 20.7 755 760 174.9
D 8 195 255367 1422.99 739 719 179.0
D 10 199 244152 1360.32 739 719 179.0
D 12 233 237415 1322.67 739 719 179.0

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