ASTROSAT CZTI

Data Quality Report

Orbit 34031

Creation date: 2024-06-27T20:55:37.888413
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/AS1A06_003T04_9000004866_34031cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34031cztM0_level2_quad_clean.evt
Size (bytes)473,768,64064,203,840
Size451.8 MB 61.2 MB
Events in quadrant A2,745,417414,889
Events in quadrant B3,458,828412,382
Events in quadrant C3,933,128390,613
Events in quadrant D3,872,312375,933

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110593
B0136662
C0153032
D0150782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A499360.120168%
B49931422.843982%
C49932585.167234%
D49931462.924094%

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 7086 4994 0 0 0.00% 0.00%
B 7086 4994 97 97 1.37% 1.94%
C 7086 4994 236 236 3.33% 4.73%
D 7086 4994 146 146 2.06% 2.92%

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 15 169 59164 436.03 678 669 134.2
A 13 6 39078 286.31 678 669 134.2
A 10 83 18411 132.25 678 669 134.2
B 5 172 580083 4637.42 668 655 124.9
B 0 189 81420 646.4 668 655 124.9
B 0 229 52198 412.52 668 655 124.9
C 4 254 684797 4773.64 631 637 143.3
C 0 10 283321 1972.39 631 637 143.3
C 15 214 232329 1616.6 631 637 143.3
D 8 195 538703 3403.09 641 623 158.1
D 2 249 329991 2083.09 641 623 158.1
D 10 118 224016 1412.85 641 623 158.1

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