ASTROSAT CZTI

Data Quality Report

Orbit 06368

Creation date: 2024-06-27T15:06:15.256545
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_124T01_9000000842_06368cztM0_level2.evt modeM0/AS1A02_124T01_9000000842_06368cztM0_level2_quad_clean.evt
Size (bytes)467,812,80069,151,680
Size446.1 MB 65.9 MB
Events in quadrant A3,270,626415,008
Events in quadrant B3,239,091422,284
Events in quadrant C3,393,639418,878
Events in quadrant D3,839,813401,041

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134213
B0134072
C0140892
D0154902

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6250921.472000%
B62501021.632000%
C62501352.160000%
D62501081.728000%

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 7524 6250 0 0 0.00% 0.00%
B 7524 6250 4 4 0.05% 0.06%
C 7524 6250 30 30 0.40% 0.48%
D 7524 6250 29 29 0.39% 0.46%

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 15 236 173442 1095.3 795 778 157.6
A 8 15 28321 174.72 795 778 157.6
A 0 226 7669 43.71 795 778 157.6
B 0 228 74728 494.65 800 782 149.5
B 0 219 49462 325.64 800 782 149.5
B 12 111 14409 91.16 800 782 149.5
C 4 254 176460 982.13 780 784 178.9
C 1 241 166051 923.94 780 784 178.9
C 9 54 8561 43.48 780 784 178.9
D 2 63 577824 3084.39 780 758 187.1
D 2 152 167485 891.15 780 758 187.1
D 12 221 52439 276.23 780 758 187.1

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