ASTROSAT CZTI

Data Quality Report

Orbit 07072

Creation date: 2024-06-27T15:15:14.079670
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/AS1G06_164T01_9000000968_07072cztM0_level2.evt modeM0/AS1G06_164T01_9000000968_07072cztM0_level2_quad_clean.evt
Size (bytes)945,279,360219,142,080
Size901.5 MB 209.0 MB
Events in quadrant A6,532,0171,415,259
Events in quadrant B7,019,4561,436,308
Events in quadrant C6,445,8081,405,911
Events in quadrant D7,619,6771,350,365

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03060
B03060
C03060
D03060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0302814
B0317853
C0302753
D0331333

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A14915460.308414%
B149151190.797855%
C14915560.375461%
D149152271.521958%

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 17160 14918 0 0 0.00% 0.00%
B 17160 14918 9 9 0.05% 0.06%
C 17160 14918 0 0 0.00% 0.00%
D 17160 14918 123 123 0.72% 0.82%

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 14 23348 63.44 1685 1645 342.1
A 8 15 18042 47.93 1685 1645 342.1
A 0 226 15970 41.87 1685 1645 342.1
B 0 214 191114 592.13 1703 1662 319.9
B 0 228 91898 282.03 1703 1662 319.9
B 4 142 55345 167.79 1703 1662 319.9
C 13 61 12980 29.95 1640 1646 378.4
C 7 247 10185 22.57 1640 1646 378.4
C 4 254 10113 22.38 1640 1646 378.4
D 8 195 602291 1527.86 1628 1576 393.2
D 12 233 458457 1162.03 1628 1576 393.2
D 14 34 149819 377.04 1628 1576 393.2

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