ASTROSAT CZTI

Data Quality Report

Orbit 16303

Creation date: 2024-06-27T17:20:45.086045
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/AS1A05_034T01_9000002404_16303cztM0_level2.evt modeM0/AS1A05_034T01_9000002404_16303cztM0_level2_quad_clean.evt
Size (bytes)504,239,040101,787,840
Size480.9 MB 97.1 MB
Events in quadrant A3,727,841639,244
Events in quadrant B3,780,416653,001
Events in quadrant C3,606,374643,854
Events in quadrant D3,657,667635,861

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158512
B0158201
C0155011
D0158911

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73401371.866485%
B73401572.138965%
C73401702.316076%
D73401401.907357%

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 7451 7343 11 11 0.15% 0.15%
B 7451 7343 9 9 0.12% 0.12%
C 7451 7343 0 0 0.00% 0.00%
D 7451 7343 44 44 0.59% 0.60%

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 240877 1304.37 905 884 184.0
A 0 226 7946 38.38 905 884 184.0
A 3 137 6632 31.24 905 884 184.0
B 0 189 63593 361.17 902 879 173.6
B 0 198 51888 293.76 902 879 173.6
B 4 216 30113 168.36 902 879 173.6
C 14 238 132124 648.49 865 871 202.4
C 3 233 68575 334.51 865 871 202.4
C 0 207 15876 74.14 865 871 202.4
D 10 70 188645 801.17 875 852 234.4
D 1 52 46266 193.75 875 852 234.4
D 2 234 31265 129.75 875 852 234.4

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