ASTROSAT CZTI

Data Quality Report

Orbit 03467

Creation date: 2024-06-27T14:29:25.933963
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_209T01_9000000458_03467cztM0_level2.evt modeM0/AS1G05_209T01_9000000458_03467cztM0_level2_quad_clean.evt
Size (bytes)780,860,160172,647,360
Size744.7 MB 164.6 MB
Events in quadrant A5,895,2001,111,100
Events in quadrant B6,369,6171,110,156
Events in quadrant C5,517,0921,124,055
Events in quadrant D5,092,4791,093,298

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02320
B02320
C02320
D02320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259147
B0265352
C0248172
D0239712

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A114232752.407424%
B114241771.549370%
C114241891.654412%
D114241611.409314%

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 12569 11424 95 95 0.76% 0.83%
B 12569 11426 47 47 0.37% 0.41%
C 12569 11426 143 143 1.14% 1.25%
D 12569 11425 50 50 0.40% 0.44%

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 660208 2583.98 1239 1206 255.0
A 0 31 209583 817.06 1239 1206 255.0
A 0 118 183013 712.88 1239 1206 255.0
B 15 204 807817 3343.55 1257 1225 241.2
B 4 170 192943 794.73 1257 1225 241.2
B 14 167 90135 368.56 1257 1225 241.2
C 1 192 646687 2285.53 1214 1217 282.4
C 9 144 41741 143.49 1214 1217 282.4
C 8 128 20579 68.56 1214 1217 282.4
D 13 223 152635 518.5 1206 1165 292.1
D 2 37 72406 243.87 1206 1165 292.1
D 8 195 67106 225.72 1206 1165 292.1

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