ASTROSAT CZTI

Data Quality Report

Orbit 28258

Creation date: 2024-06-27T19:49:44.204341
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_067T01_9000004076_28258cztM0_level2.evt modeM0/AS1A10_067T01_9000004076_28258cztM0_level2_quad_clean.evt
Size (bytes)574,580,16096,310,080
Size548.0 MB 91.8 MB
Events in quadrant A3,368,602632,710
Events in quadrant B3,762,675636,906
Events in quadrant C3,472,840606,874
Events in quadrant D6,320,829550,755

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144030
B0155620
C0146190
D0237550

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7027991.408852%
B70271712.433471%
C70271331.892700%
D702782711.768891%

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 7632 7027 0 0 0.00% 0.00%
B 7632 7027 54 54 0.71% 0.77%
C 7632 7027 3 3 0.04% 0.04%
D 7632 7027 507 507 6.64% 7.22%

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 13 254 11019 58.34 869 851 174.3
A 3 137 8738 45.25 869 851 174.3
A 0 226 7322 37.13 869 851 174.3
B 10 245 374785 2269.2 855 834 164.8
B 12 111 20497 119.32 855 834 164.8
B 11 111 19131 111.03 855 834 164.8
C 14 238 132671 679.1 828 833 194.1
C 3 233 95185 486.01 828 833 194.1
C 1 90 13661 66.08 828 833 194.1
D 1 52 2294224 12095.79 795 774 189.6
D 8 195 766125 4036.51 795 774 189.6
D 2 250 158819 833.54 795 774 189.6

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