ASTROSAT CZTI

Data Quality Report

Orbit 05761

Creation date: 2024-06-27T14:58:48.828065
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/AS1A02_149T01_9000000740_05761cztM0_level2.evt modeM0/AS1A02_149T01_9000000740_05761cztM0_level2_quad_clean.evt
Size (bytes)431,069,76060,451,200
Size411.1 MB 57.7 MB
Events in quadrant A3,173,949348,563
Events in quadrant B3,270,088355,223
Events in quadrant C3,105,890351,064
Events in quadrant D3,075,314334,247

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132343
B0133842
C0131562
D0132882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6321831.313083%
B6321921.455466%
C6321570.901756%
D6321490.775194%

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 7616 6322 0 0 0.00% 0.00%
B 7616 6322 0 0 0.00% 0.00%
C 7616 6322 0 0 0.00% 0.00%
D 7616 6322 1 1 0.01% 0.02%

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 0 226 8152 44.12 823 805 166.5
A 12 194 7993 43.17 823 805 166.5
A 14 111 6980 37.08 823 805 166.5
B 15 204 17233 104.38 831 814 157.3
B 12 111 14606 87.68 831 814 157.3
B 0 183 11570 68.38 831 814 157.3
C 9 16 9718 48.32 793 799 184.6
C 13 61 6221 29.37 793 799 184.6
C 14 67 2699 10.29 793 799 184.6
D 12 110 24542 122.47 790 768 194.1
D 12 221 18789 92.84 790 768 194.1
D 10 15 15372 75.23 790 768 194.1

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