ASTROSAT CZTI

Data Quality Report

Orbit 00212

Creation date: 2024-06-27T13:57:58.894022
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/AS1P01_118T01_9000000020_00212cztM0_level2.evt modeM0/AS1P01_118T01_9000000020_00212cztM0_level2_quad_clean.evt
Size (bytes)942,076,80066,936,960
Size898.4 MB 63.8 MB
Events in quadrant A8,785,453399,801
Events in quadrant B6,680,279419,952
Events in quadrant C6,208,417417,038
Events in quadrant D6,494,239406,995

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300584
B0237493
C0223593
D0231683

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54733656.669103%
B547330.054815%
C547350.091358%
D5473140.255801%

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 7432 5475 1160 1160 15.61% 21.19%
B 7432 5475 115 115 1.55% 2.10%
C 7432 5475 73 73 0.98% 1.33%
D 7432 5475 122 122 1.64% 2.23%

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 15 127 2044486 5367.52 1725 1717 380.6
A 0 253 32096 79.82 1725 1717 380.6
A 12 133 11046 24.51 1725 1717 380.6
B 4 235 30591 71.68 1716 1727 402.7
B 5 46 25671 59.46 1716 1727 402.7
B 5 2 18796 42.39 1716 1727 402.7
C 1 1 26896 56.29 1563 1608 449.3
C 0 186 21486 44.24 1563 1608 449.3
C 1 192 9562 17.7 1563 1608 449.3
D 1 4 173667 358.46 1569 1621 480.0
D 13 117 81324 166.06 1569 1621 480.0
D 1 5 32995 65.37 1569 1621 480.0

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