ASTROSAT CZTI

Data Quality Report

Orbit 04470

Creation date: 2024-06-27T14:42:32.279186
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_253T03_9000000562_04470cztM0_level2.evt modeM0/AS1G05_253T03_9000000562_04470cztM0_level2_quad_clean.evt
Size (bytes)68,607,3606,264,000
Size65.4 MB 6.0 MB
Events in quadrant A439,08528,060
Events in quadrant B456,64128,497
Events in quadrant C448,36528,098
Events in quadrant D661,74126,622

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020241
B020220
C020310
D026070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A100900.000000%
B100900.000000%
C100900.000000%
D1009464.558969%

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 1009 1009 0 0 0.00% 0.00%
B 1009 1009 0 0 0.00% 0.00%
C 1009 1009 0 0 0.00% 0.00%
D 1009 1009 44 44 4.36% 4.36%

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 0 118 2247 85.66 113 111 24.9
A 0 13 1346 49.53 113 111 24.9
A 0 226 1257 45.96 113 111 24.9
B 15 204 2553 101.13 117 115 24.1
B 12 111 1949 76.08 117 115 24.1
B 4 48 1568 60.27 117 115 24.1
C 14 225 2280 77.84 113 113 27.8
C 14 48 1677 56.18 113 113 27.8
C 9 247 1017 32.47 113 113 27.8
D 8 112 139226 5000.04 107 104 27.8
D 13 235 51312 1840.41 107 104 27.8
D 12 79 35366 1267.31 107 104 27.8

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