ASTROSAT CZTI

Data Quality Report

Orbit 28098

Creation date: 2024-06-27T19:48:02.412503
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_057T05_9000004060_28098cztM0_level2.evt modeM0/AS1A10_057T05_9000004060_28098cztM0_level2_quad_clean.evt
Size (bytes)549,745,92080,913,600
Size524.3 MB 77.2 MB
Events in quadrant A3,414,256514,374
Events in quadrant B3,438,270507,528
Events in quadrant C3,429,769485,618
Events in quadrant D5,915,209477,958

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139490
B0140460
C0139440
D0222250

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66681041.559688%
B6669991.484480%
C66681231.844631%
D66684757.123575%

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 7643 6668 0 0 0.00% 0.00%
B 7644 6669 1 1 0.01% 0.01%
C 7643 6668 0 0 0.00% 0.00%
D 7643 6668 345 345 4.51% 5.17%

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 98 12425 65.68 880 863 176.0
A 13 254 11502 60.44 880 863 176.0
A 3 137 8275 42.1 880 863 176.0
B 0 183 23617 139.17 858 836 163.7
B 15 32 21297 125.0 858 836 163.7
B 12 111 19917 116.57 858 836 163.7
C 14 238 135129 692.92 833 837 193.8
C 3 233 34123 171.75 833 837 193.8
C 2 16 13476 65.21 833 837 193.8
D 1 52 1754350 8676.77 837 814 202.1
D 8 195 620572 3066.66 837 814 202.1
D 2 250 271943 1341.59 837 814 202.1

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