ASTROSAT CZTI

Data Quality Report

Orbit 25430

Creation date: 2024-06-27T19:17:33.637728
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/AS1A09_047T01_9000003714_25430cztM0_level2.evt modeM0/AS1A09_047T01_9000003714_25430cztM0_level2_quad_clean.evt
Size (bytes)541,319,04089,458,560
Size516.2 MB 85.3 MB
Events in quadrant A3,584,586578,672
Events in quadrant B3,554,506582,731
Events in quadrant C3,545,690559,665
Events in quadrant D5,265,907531,763

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146590
B0146340
C0147080
D0203740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6543610.932294%
B6542841.284011%
C65421452.216448%
D65424176.374197%

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 7753 6543 1 1 0.01% 0.02%
B 7752 6542 3 3 0.04% 0.05%
C 7752 6542 0 0 0.00% 0.00%
D 7752 6542 353 353 4.55% 5.40%

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 6 16 102171 572.03 902 885 177.1
A 13 254 9594 49.19 902 885 177.1
A 0 226 7920 39.73 902 885 177.1
B 0 230 44610 266.06 889 871 164.4
B 12 111 19742 114.79 889 871 164.4
B 11 111 17647 102.05 889 871 164.4
C 14 238 142547 719.04 865 875 197.0
C 7 247 23872 116.72 865 875 197.0
C 13 61 6033 26.18 865 875 197.0
D 1 52 1217856 5896.44 863 840 206.4
D 8 195 649095 3140.79 863 840 206.4
D 2 82 81334 389.99 863 840 206.4

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