ASTROSAT CZTI

Data Quality Report

Orbit 19589

Creation date: 2024-06-27T18:04:32.165918
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/AS1T03_115T01_9000002914_19589cztM0_level2.evt modeM0/AS1T03_115T01_9000002914_19589cztM0_level2_quad_clean.evt
Size (bytes)505,180,80076,138,560
Size481.8 MB 72.6 MB
Events in quadrant A3,399,426457,701
Events in quadrant B3,593,271461,423
Events in quadrant C3,527,825442,290
Events in quadrant D4,286,460439,195

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148511
B0152541
C0150541
D0173711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7246951.311068%
B72471351.862840%
C72471532.111218%
D72472463.394508%

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 7516 7247 0 0 0.00% 0.00%
B 7517 7248 13 13 0.17% 0.18%
C 7517 7247 2 2 0.03% 0.03%
D 7517 7247 138 138 1.84% 1.90%

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 5 16 15552 82.57 873 854 178.0
A 13 254 10695 55.29 873 854 178.0
A 15 191 9903 50.84 873 854 178.0
B 4 216 43578 256.07 865 842 166.9
B 0 230 28672 166.75 865 842 166.9
B 15 32 24803 143.57 865 842 166.9
C 14 238 130466 664.43 829 833 195.1
C 5 112 113214 576.01 829 833 195.1
C 3 233 15665 76.02 829 833 195.1
D 1 52 605161 2952.45 837 811 204.7
D 7 238 129178 627.12 837 811 204.7
D 2 16 112178 544.07 837 811 204.7

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