ASTROSAT CZTI

Data Quality Report

Orbit 29229

Creation date: 2024-06-27T20:01:47.151213
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_115T03_9000004202_29229cztM0_level2.evt modeM0/AS1A10_115T03_9000004202_29229cztM0_level2_quad_clean.evt
Size (bytes)825,007,680106,908,480
Size786.8 MB 102.0 MB
Events in quadrant A3,805,771698,895
Events in quadrant B4,956,072699,467
Events in quadrant C9,167,537643,785
Events in quadrant D6,526,316649,184

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165602
B0200632
C0328474
D0247852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7850851.082803%
B78503234.114650%
C7849126216.078481%
D784985610.905848%

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 8895 7852 1 1 0.01% 0.01%
B 8895 7852 52 52 0.58% 0.66%
C 8894 7851 242 242 2.72% 3.08%
D 8894 7850 439 439 4.94% 5.59%

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 15 174 30433 149.98 974 954 196.5
A 0 13 15377 73.38 974 954 196.5
A 13 254 14973 71.33 974 954 196.5
B 10 245 858488 4642.54 962 937 184.7
B 0 229 140585 756.01 962 937 184.7
B 0 183 99941 535.98 962 937 184.7
C 3 233 5492057 25792.77 902 905 212.9
C 14 238 143754 670.98 902 905 212.9
C 2 114 18250 81.47 902 905 212.9
D 1 52 2081457 9594.74 912 887 216.8
D 12 233 442548 2036.76 912 887 216.8
D 8 195 206372 947.61 912 887 216.8

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