ASTROSAT CZTI

Data Quality Report

Orbit 03469

Creation date: 2024-06-27T14:29:48.581277
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/AS1G05_245T01_9000000460_03469cztM0_level2.evt modeM0/AS1G05_245T01_9000000460_03469cztM0_level2_quad_clean.evt
Size (bytes)472,510,08064,068,480
Size450.6 MB 61.1 MB
Events in quadrant A3,507,925366,173
Events in quadrant B4,146,847372,615
Events in quadrant C3,103,280371,677
Events in quadrant D3,092,902358,323

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148012
B0166791
C0137951
D0140491

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67603425.059172%
B67601111.642012%
C6760771.139053%
D6760891.316568%

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 7745 6760 22 22 0.28% 0.33%
B 7745 6760 7 7 0.09% 0.10%
C 7745 6760 0 0 0.00% 0.00%
D 7745 6760 15 15 0.19% 0.22%

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 14 111 183061 1101.81 809 794 165.4
A 0 118 130245 782.54 809 794 165.4
A 8 15 40193 238.17 809 794 165.4
B 15 204 725922 4512.12 824 807 160.7
B 14 167 73552 452.67 824 807 160.7
B 3 0 71003 436.8 824 807 160.7
C 1 16 7543 36.77 787 791 183.6
C 13 61 6663 31.98 787 791 183.6
C 1 192 5154 23.76 787 791 183.6
D 2 37 28504 146.16 785 764 189.8
D 13 223 27652 141.67 785 764 189.8
D 5 233 19115 96.69 785 764 189.8

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