ASTROSAT CZTI

Data Quality Report

Orbit 30673

Creation date: 2024-06-27T20:18:26.823956
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_094T80_9000004424_30673cztM0_level2.evt modeM0/AS1A10_094T80_9000004424_30673cztM0_level2_quad_clean.evt
Size (bytes)674,009,280137,050,560
Size642.8 MB 130.7 MB
Events in quadrant A3,528,073974,764
Events in quadrant B5,060,929954,821
Events in quadrant C3,333,180937,854
Events in quadrant D8,080,243858,540

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141911
B0191511
C0136191
D0283501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60781382.270484%
B60792143.520316%
C60791853.043264%
D607997015.956572%

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 7383 6079 23 23 0.31% 0.38%
B 7384 6080 40 40 0.54% 0.66%
C 7384 6080 3 3 0.04% 0.05%
D 7384 6080 867 867 11.74% 14.26%

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 13 225367 1370.97 830 817 163.8
A 15 174 91992 556.66 830 817 163.8
A 13 254 11441 64.86 830 817 163.8
B 6 159 1654967 11192.87 797 778 147.8
B 4 81 188934 1273.13 797 778 147.8
B 0 190 50939 339.41 797 778 147.8
C 14 238 130488 723.8 785 789 179.2
C 3 233 51951 285.51 785 789 179.2
C 0 10 45619 250.18 785 789 179.2
D 8 195 2856054 16065.21 775 756 177.7
D 1 52 796437 4476.86 775 756 177.7
D 12 227 793050 4457.81 775 756 177.7

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