ASTROSAT CZTI

Data Quality Report

Orbit 14054

Creation date: 2024-06-27T16:49:43.618141
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/AS1A04_162T01_9000002074_14054cztM0_level2.evt modeM0/AS1A04_162T01_9000002074_14054cztM0_level2_quad_clean.evt
Size (bytes)457,032,960134,519,040
Size435.9 MB 128.3 MB
Events in quadrant A3,213,257939,916
Events in quadrant B3,480,710943,420
Events in quadrant C3,199,987897,751
Events in quadrant D3,527,748862,190

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134922
B0143721
C0134191
D0147161

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6174981.587302%
B61741442.332362%
C6174691.117590%
D61741702.753482%

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 7505 6176 0 0 0.00% 0.00%
B 7505 6176 30 30 0.40% 0.49%
C 7505 6176 2 2 0.03% 0.03%
D 7505 6176 71 71 0.95% 1.15%

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 12 189 103805 632.85 806 793 162.8
A 8 15 10530 59.82 806 793 162.8
A 0 226 7323 40.12 806 793 162.8
B 0 189 108892 732.35 798 782 147.6
B 10 245 88746 595.88 798 782 147.6
B 0 190 31812 210.2 798 782 147.6
C 3 233 223627 1302.51 756 760 171.1
C 0 207 27721 157.57 756 760 171.1
C 13 61 5663 28.65 756 760 171.1
D 10 157 167674 832.83 751 733 200.5
D 1 52 154091 765.07 751 733 200.5
D 15 0 101576 503.08 751 733 200.5

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