ASTROSAT CZTI

Data Quality Report

Orbit 30833

Creation date: 2024-06-27T20:20:08.692878
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_071T38_9000004454_30833cztM0_level2.evt modeM0/AS1A10_071T38_9000004454_30833cztM0_level2_quad_clean.evt
Size (bytes)583,168,32063,898,560
Size556.2 MB 60.9 MB
Events in quadrant A3,324,474390,763
Events in quadrant B5,532,523387,872
Events in quadrant C3,468,105365,698
Events in quadrant D4,914,596354,867

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131941
B0204303
C0137051
D0188641

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6240450.721154%
B62402874.599359%
C62401362.179487%
D62401632.612179%

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 7500 6240 0 0 0.00% 0.00%
B 7500 6240 141 141 1.88% 2.26%
C 7500 6240 18 18 0.24% 0.29%
D 7500 6240 91 91 1.21% 1.46%

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 12312 67.19 859 844 170.7
A 15 192 9321 49.66 859 844 170.7
A 3 137 7677 40.03 859 844 170.7
B 6 159 1663242 10581.45 833 814 157.1
B 0 229 326496 2072.98 833 814 157.1
B 6 36 108627 686.24 833 814 157.1
C 14 238 131085 697.44 801 807 186.8
C 0 10 126165 671.11 801 807 186.8
C 3 233 51929 273.68 801 807 186.8
D 8 195 1343678 7086.84 803 787 189.5
D 12 218 183672 965.14 803 787 189.5
D 1 52 112886 591.58 803 787 189.5

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