ASTROSAT CZTI

Data Quality Report

Orbit 34133

Creation date: 2024-06-27T20:56:51.283846
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/AS1A11_097T08_9000004874_34133cztM0_level2.evt modeM0/AS1A11_097T08_9000004874_34133cztM0_level2_quad_clean.evt
Size (bytes)444,058,56074,004,480
Size423.5 MB 70.6 MB
Events in quadrant A2,546,021478,318
Events in quadrant B3,229,628493,246
Events in quadrant C3,616,677463,664
Events in quadrant D3,700,279438,615

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106544
B0128732
C0139542
D0146692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A524370.133511%
B5243320.610338%
C52431893.604806%
D52431041.983597%

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 7367 5245 0 0 0.00% 0.00%
B 7367 5245 8 8 0.11% 0.15%
C 7367 5245 178 178 2.42% 3.39%
D 7367 5245 90 90 1.22% 1.72%

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 10 83 20080 150.43 650 639 129.2
A 13 6 15134 112.16 650 639 129.2
A 13 254 9161 65.94 650 639 129.2
B 5 31 329306 2705.75 647 631 121.5
B 5 15 131657 1078.65 647 631 121.5
B 5 172 94038 768.95 647 631 121.5
C 0 10 668987 4676.41 618 623 142.9
C 14 254 275143 1920.76 618 623 142.9
C 15 214 226736 1582.07 618 623 142.9
D 8 195 736657 4869.46 618 601 151.2
D 2 250 218024 1438.39 618 601 151.2
D 10 118 111086 730.93 618 601 151.2

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