ASTROSAT CZTI

Data Quality Report

Orbit 13349

Creation date: 2024-06-27T16:39:31.176646
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/AS1G08_082T01_9000001986_13349cztM0_level2.evt modeM0/AS1G08_082T01_9000001986_13349cztM0_level2_quad_clean.evt
Size (bytes)537,986,880110,833,920
Size513.1 MB 105.7 MB
Events in quadrant A3,848,724699,964
Events in quadrant B4,015,530718,211
Events in quadrant C3,897,546695,296
Events in quadrant D3,966,941665,959

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171263
B0174772
C0171122
D0176092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8317350.420825%
B8317650.781532%
C8317330.396778%
D8317240.288566%

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 9348 8321 0 0 0.00% 0.00%
B 9348 8321 5 5 0.05% 0.06%
C 9348 8321 2 2 0.02% 0.02%
D 9348 8321 7 7 0.07% 0.08%

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 1 162 17364 80.66 992 971 203.2
A 0 226 8680 37.93 992 971 203.2
A 12 194 7504 32.15 992 971 203.2
B 0 230 57663 296.29 998 972 191.3
B 3 64 29544 149.33 998 972 191.3
B 12 111 22602 113.05 998 972 191.3
C 3 233 92267 404.62 971 976 225.6
C 6 253 10325 41.44 971 976 225.6
C 13 61 7130 27.28 971 976 225.6
D 1 52 126731 544.82 958 930 230.9
D 8 195 112438 482.92 958 930 230.9
D 5 222 35976 151.78 958 930 230.9

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