ASTROSAT CZTI

Data Quality Report

Orbit 05022

Creation date: 2024-06-27T14:50:16.895260
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/AS1G05_250T02_9000000638_05022cztM0_level2.evt modeM0/AS1G05_250T02_9000000638_05022cztM0_level2_quad_clean.evt
Size (bytes)1,119,602,880186,114,240
Size1.0 GB 177.5 MB
Events in quadrant A8,022,4971,139,361
Events in quadrant B8,328,0161,157,808
Events in quadrant C7,299,6301,151,654
Events in quadrant D9,187,5581,096,476

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03220
B03220
C03220
D03220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0344444
B0347413
C0324073
D0380153

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A158183592.269566%
B158182591.637375%
C158181320.834492%
D158183342.111519%

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 19458 15821 120 120 0.62% 0.76%
B 19458 15821 12 12 0.06% 0.08%
C 19458 15821 0 0 0.00% 0.00%
D 19458 15821 141 141 0.72% 0.89%

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 0 50 351114 908.8 1903 1865 384.3
A 14 111 176402 454.17 1903 1865 384.3
A 13 251 134082 344.05 1903 1865 384.3
B 15 204 668234 1847.14 1909 1866 360.8
B 0 219 111417 303.67 1909 1866 360.8
B 4 48 108319 295.08 1909 1866 360.8
C 1 16 143955 341.3 1830 1838 416.4
C 13 61 14995 31.6 1830 1838 416.4
C 9 54 10228 20.15 1830 1838 416.4
D 2 136 704301 1562.22 1839 1779 449.7
D 13 239 397217 879.35 1839 1779 449.7
D 12 227 337164 745.81 1839 1779 449.7

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