ASTROSAT CZTI

Data Quality Report

Orbit 09409

Creation date: 2024-06-27T15:45:41.462816
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/AS1G07_044T09_9000001334_09409cztM0_level2.evt modeM0/AS1G07_044T09_9000001334_09409cztM0_level2_quad_clean.evt
Size (bytes)699,220,800142,015,680
Size666.8 MB 135.4 MB
Events in quadrant A6,046,854886,008
Events in quadrant B4,868,835901,955
Events in quadrant C4,768,505918,430
Events in quadrant D4,799,311887,231

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0247003
B0212792
C0210872
D0214662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02080
B02080
C02080
D02080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A102152041.997063%
B102151071.047479%
C102151071.047479%
D10215970.949584%

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 12755 10217 66 66 0.52% 0.65%
B 12755 10217 0 0 0.00% 0.00%
C 12755 10217 0 0 0.00% 0.00%
D 12755 10217 4 4 0.03% 0.04%

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 5 1000933 4110.97 1212 1186 243.2
A 5 16 202873 829.34 1212 1186 243.2
A 4 2 51173 205.55 1212 1186 243.2
B 0 219 53944 229.27 1226 1192 230.1
B 0 214 26116 108.32 1226 1192 230.1
B 12 111 24669 102.04 1226 1192 230.1
C 4 254 12026 39.22 1214 1221 275.5
C 10 22 11415 37.0 1214 1221 275.5
C 13 61 9011 28.27 1214 1221 275.5
D 1 52 63399 214.79 1198 1172 289.7
D 7 55 54205 183.05 1198 1172 289.7
D 2 234 39805 133.35 1198 1172 289.7

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