ASTROSAT CZTI

Data Quality Report

Orbit 08104

Creation date: 2024-06-27T15:27:59.153918
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/AS1A02_055T01_9000001114_08104cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08104cztM0_level2_quad_clean.evt
Size (bytes)494,907,84068,734,080
Size472.0 MB 65.5 MB
Events in quadrant A3,718,885407,328
Events in quadrant B3,308,765414,635
Events in quadrant C3,148,614420,300
Events in quadrant D4,390,153404,908

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151133
B0138402
C0134062
D0171482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6210841.352657%
B62101051.690821%
C6210530.853462%
D621066210.660225%

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 7480 6210 0 0 0.00% 0.00%
B 7480 6211 28 28 0.37% 0.45%
C 7480 6211 0 0 0.00% 0.00%
D 7480 6210 571 571 7.63% 9.19%

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 8 15 623146 3828.26 804 787 162.6
A 0 226 7489 41.23 804 787 162.6
A 12 194 7385 40.59 804 787 162.6
B 0 214 96567 633.18 806 790 151.3
B 10 16 35978 232.63 806 790 151.3
B 11 51 25527 163.54 806 790 151.3
C 1 16 65882 358.81 790 793 181.4
C 13 61 6172 29.65 790 793 181.4
C 3 202 2090 7.15 790 793 181.4
D 1 52 1437003 7305.59 743 726 196.6
D 5 233 59808 300.52 743 726 196.6
D 2 234 20793 102.07 743 726 196.6

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