ASTROSAT CZTI

Data Quality Report

Orbit 32019

Creation date: 2024-06-27T20:35:18.861635
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/AS1A10_109T01_9000004678_32019cztM0_level2.evt modeM0/AS1A10_109T01_9000004678_32019cztM0_level2_quad_clean.evt
Size (bytes)558,910,08077,699,520
Size533.0 MB 74.1 MB
Events in quadrant A3,517,766501,896
Events in quadrant B5,109,930493,931
Events in quadrant C3,764,987466,389
Events in quadrant D4,116,208459,509

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140342
B0190622
C0150782
D0163922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6173801.295966%
B61731492.413737%
C61733435.556456%
D6173781.263567%

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 7498 6173 0 0 0.00% 0.00%
B 7498 6173 0 0 0.00% 0.00%
C 7498 6173 1 1 0.01% 0.02%
D 7498 6173 14 14 0.19% 0.23%

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 13 254 11170 57.39 910 895 179.0
A 13 6 8489 42.41 910 895 179.0
A 3 137 8100 40.24 910 895 179.0
B 6 159 1550524 9331.17 891 872 166.1
B 0 190 30261 176.96 891 872 166.1
B 0 229 22347 129.31 891 872 166.1
C 14 238 207944 1082.48 836 846 191.3
C 3 233 136229 707.63 836 846 191.3
C 14 254 92473 478.92 836 846 191.3
D 8 195 712788 3553.85 859 840 200.3
D 12 218 93410 462.08 859 840 200.3
D 10 199 30476 147.94 859 840 200.3

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