ASTROSAT CZTI

Data Quality Report

Orbit 32765

Creation date: 2024-06-27T20:41:46.532862
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/AS1T04_064T01_9000004730_32765cztM0_level2.evt modeM0/AS1T04_064T01_9000004730_32765cztM0_level2_quad_clean.evt
Size (bytes)95,264,64017,752,320
Size90.9 MB 16.9 MB
Events in quadrant A629,516119,248
Events in quadrant B529,013122,518
Events in quadrant C475,039122,475
Events in quadrant D1,188,167103,367

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A024711
B021560
C018550
D041740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A887141.578354%
B88750.563698%
C88700.000000%
D88719722.209696%

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 887 887 1 1 0.11% 0.11%
B 887 887 0 0 0.00% 0.00%
C 887 887 0 0 0.00% 0.00%
D 887 887 120 120 13.53% 13.53%

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 12 16 125151 4580.1 123 121 27.3
A 12 194 17724 644.83 123 121 27.3
A 0 159 4844 173.01 123 121 27.3
B 0 219 30156 1156.47 122 119 26.0
B 0 197 10250 390.06 122 119 26.0
B 4 251 4160 155.58 122 119 26.0
C 0 10 2174 68.31 120 120 30.1
C 14 67 2047 64.09 120 120 30.1
C 0 207 1633 50.32 120 120 30.1
D 8 195 345544 11513.05 111 108 30.0
D 2 250 140179 4668.43 111 108 30.0
D 12 17 116217 3869.8 111 108 30.0

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