ASTROSAT CZTI

Data Quality Report

Orbit 46671

Creation date: 2024-06-27T23:26:17.464566
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_092T18_9000006248_46671cztM0_level2.fits modeM0/AS1A13_092T18_9000006248_46671cztM0_level2_quad_clean.evt
Size (bytes)941,523,840163,676,160
Size897.9 MB 156.1 MB
Events in quadrant A9,929,5581,109,970
Events in quadrant B6,977,5541,112,268
Events in quadrant C4,740,6521,108,187
Events in quadrant D12,382,481888,142

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0367692
B0279722
C0223062
D0441502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A106394053.806749%
B106395284.962872%
C106401251.174812%
D10640192818.120301%

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 11014 10642 10 10 0.09% 0.09%
B 11014 10642 174 174 1.58% 1.64%
C 11015 10643 18 18 0.16% 0.17%
D 11015 10643 1562 1562 14.18% 14.68%

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 5257588 21471.03 1177 1151 244.8
A 15 235 38531 152.69 1177 1151 244.8
A 13 254 18062 69.08 1177 1151 244.8
B 4 171 789843 3455.18 1161 1126 228.3
B 0 189 571259 2497.62 1161 1126 228.3
B 10 128 223250 973.07 1161 1126 228.3
C 0 207 91857 327.13 1164 1167 277.2
C 12 2 36251 126.55 1164 1167 277.2
C 12 250 25004 85.98 1164 1167 277.2
D 1 52 4872298 17548.51 1095 1059 277.6
D 8 176 1609468 5794.25 1095 1059 277.6
D 12 128 491178 1765.64 1095 1059 277.6

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