ASTROSAT CZTI

Data Quality Report

Orbit 44657

Creation date: 2024-06-27T23:04:59.466906
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/AS1A13_072T01_9000006008_44657cztM0_level2.fits modeM0/AS1A13_072T01_9000006008_44657cztM0_level2_quad_clean.evt
Size (bytes)915,592,320158,731,200
Size873.2 MB 151.4 MB
Events in quadrant A9,143,6621,055,867
Events in quadrant B4,915,0471,146,310
Events in quadrant C5,636,6251,073,128
Events in quadrant D13,369,304790,328

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0361062
B0222362
C0246242
D0471404

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02160
B02160
C02160
D02160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A106938027.500234%
B10694670.626520%
C106942712.534131%
D10693258524.174694%

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 12173 10695 451 451 3.70% 4.22%
B 12174 10696 6 6 0.05% 0.06%
C 12174 10696 178 178 1.46% 1.66%
D 12173 10695 2458 2458 20.19% 22.98%

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 10 83 2913393 12638.65 1116 1094 230.4
A 15 223 1153379 5000.63 1116 1094 230.4
A 13 248 625997 2711.92 1116 1094 230.4
B 0 189 169650 740.12 1160 1124 227.7
B 0 186 57669 248.33 1160 1124 227.7
B 0 219 31013 131.26 1160 1124 227.7
C 12 2 549689 2090.62 1125 1131 262.4
C 14 254 321595 1221.33 1125 1131 262.4
C 0 207 249006 944.68 1125 1131 262.4
D 1 52 5876744 22600.01 1029 998 260.0
D 13 153 2169940 8342.45 1029 998 260.0
D 13 249 663205 2547.06 1029 998 260.0

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