ASTROSAT CZTI

Data Quality Report

Orbit 30497

Creation date: 2024-06-27T20:16:02.044240
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/AS1A10_053T22_9000004384_30497cztM0_level2.evt modeM0/AS1A10_053T22_9000004384_30497cztM0_level2_quad_clean.evt
Size (bytes)525,841,92081,861,120
Size501.5 MB 78.1 MB
Events in quadrant A2,973,705542,243
Events in quadrant B4,508,527540,281
Events in quadrant C3,318,867503,282
Events in quadrant D4,741,880498,455

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121871
B0173511
C0133691
D0178731

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5651581.026367%
B5651891.574942%
C56511422.512830%
D565259710.562633%

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 6871 5652 3 3 0.04% 0.05%
B 6871 5652 1 1 0.01% 0.02%
C 6871 5652 34 34 0.49% 0.60%
D 6872 5653 387 387 5.63% 6.85%

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 8 192 11162 68.54 765 753 151.9
A 13 254 9977 60.74 765 753 151.9
A 4 2 8368 50.14 765 753 151.9
B 6 159 1512072 10666.88 745 729 141.7
B 0 229 63978 446.4 745 729 141.7
B 12 111 16809 113.49 745 729 141.7
C 10 22 186894 1128.57 708 714 165.0
C 3 233 168856 1019.23 708 714 165.0
C 14 238 117034 705.1 708 714 165.0
D 1 52 1218033 7460.52 699 684 163.2
D 8 195 264128 1614.51 699 684 163.2
D 13 104 240670 1470.75 699 684 163.2

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