ASTROSAT CZTI

Data Quality Report

Orbit 10069

Creation date: 2024-06-27T15:54:32.334663
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/AS1A03_084T01_9000001440_10069cztM0_level2.evt modeM0/AS1A03_084T01_9000001440_10069cztM0_level2_quad_clean.evt
Size (bytes)42,681,60011,568,960
Size40.7 MB 11.0 MB
Events in quadrant A338,13476,392
Events in quadrant B328,99176,751
Events in quadrant C279,87975,374
Events in quadrant D301,67871,878

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013941
B013531
C012491
D013021

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59530.504202%
B595122.016807%
C59520.336134%
D59520.336134%

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 595 595 1 1 0.17% 0.17%
B 595 595 2 2 0.34% 0.34%
C 595 595 0 0 0.00% 0.00%
D 595 595 1 1 0.17% 0.17%

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 0 8 33885 1914.95 75 73 17.7
A 13 251 6296 352.44 75 73 17.7
A 8 5 6034 337.6 75 73 17.7
B 4 239 22735 1318.43 75 74 17.2
B 0 229 6682 384.46 75 74 17.2
B 0 214 2747 155.52 75 74 17.2
C 14 67 895 44.66 71 71 18.5
C 12 4 644 31.05 71 71 18.5
C 13 61 529 24.82 71 71 18.5
D 13 122 13127 656.07 71 68 19.9
D 2 152 10498 523.99 71 68 19.9
D 2 234 2148 104.5 71 68 19.9

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