ASTROSAT CZTI

Data Quality Report

Orbit 32042

Creation date: 2024-06-27T20:35:46.143923
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/AS1T04_046T01_9000004680_32042cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32042cztM0_level2_quad_clean.evt
Size (bytes)767,652,480127,275,840
Size732.1 MB 121.4 MB
Events in quadrant A4,211,263850,783
Events in quadrant B6,979,239832,899
Events in quadrant C5,112,596799,047
Events in quadrant D6,358,967769,151

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178812
B0270702
C0204832
D0247412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8675220.253602%
B86752182.512968%
C86764545.232826%
D86766207.146150%

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 10265 8677 0 0 0.00% 0.00%
B 10265 8676 94 94 0.92% 1.08%
C 10266 8678 51 51 0.50% 0.59%
D 10266 8677 502 502 4.89% 5.79%

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 14 238 52726 240.14 1070 1048 215.2
A 13 6 19993 88.03 1070 1048 215.2
A 13 254 17177 74.95 1070 1048 215.2
B 6 159 2415982 12048.19 1047 1019 200.4
B 5 172 277229 1378.01 1047 1019 200.4
B 0 245 52598 257.33 1047 1019 200.4
C 3 233 546655 2340.52 994 999 233.1
C 0 10 267756 1144.22 994 999 233.1
C 14 238 242859 1037.42 994 999 233.1
D 2 250 1554581 6509.46 999 974 238.7
D 8 195 940899 3938.19 999 974 238.7
D 2 234 47616 195.42 999 974 238.7

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