ASTROSAT CZTI

Data Quality Report

Orbit 06309

Creation date: 2024-06-27T15:05:25.746996
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/AS1A02_070T01_9000000832_06309cztM0_level2.evt modeM0/AS1A02_070T01_9000000832_06309cztM0_level2_quad_clean.evt
Size (bytes)593,916,48082,082,880
Size566.4 MB 78.3 MB
Events in quadrant A3,674,678518,159
Events in quadrant B4,630,108526,147
Events in quadrant C3,035,914528,640
Events in quadrant D6,218,483471,681

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148622
B0178771
C0131671
D0227951

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6315871.377672%
B63155128.107680%
C6315751.187648%
D631587513.855899%

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 7510 6315 5 5 0.07% 0.08%
B 7510 6315 316 316 4.21% 5.00%
C 7510 6315 1 1 0.01% 0.02%
D 7510 6315 609 609 8.11% 9.64%

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 8 15 507822 3130.62 798 781 162.0
A 13 251 85155 520.95 798 781 162.0
A 0 226 7685 42.63 798 781 162.0
B 3 64 1442649 9665.22 788 772 149.2
B 10 213 94207 626.32 788 772 149.2
B 12 111 14603 92.71 788 772 149.2
C 1 16 25270 137.58 772 780 178.0
C 13 61 6136 30.09 772 780 178.0
C 8 222 2458 9.43 772 780 178.0
D 2 63 2071293 11344.85 747 726 182.5
D 12 220 927447 5077.6 747 726 182.5
D 12 110 113489 617.84 747 726 182.5

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