ASTROSAT CZTI

Data Quality Report

Orbit 29213

Creation date: 2024-06-27T20:01:36.262944
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/AS1A10_102T02_9000004200_29213cztM0_level2.evt modeM0/AS1A10_102T02_9000004200_29213cztM0_level2_quad_clean.evt
Size (bytes)695,986,56095,181,120
Size663.7 MB 90.8 MB
Events in quadrant A3,343,184621,911
Events in quadrant B3,733,322628,072
Events in quadrant C7,150,355583,142
Events in quadrant D6,394,693577,972

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141722
B0153602
C0260142
D0237082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6754540.799526%
B67551231.820873%
C675586612.820133%
D675572310.703183%

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 7694 6755 0 0 0.00% 0.00%
B 7695 6756 23 23 0.30% 0.34%
C 7695 6756 355 355 4.61% 5.25%
D 7695 6756 471 471 6.12% 6.97%

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 13 31562 181.45 852 835 169.3
A 13 254 14467 80.5 852 835 169.3
A 15 174 10741 58.5 852 835 169.3
B 10 245 255582 1612.11 844 822 158.0
B 0 229 102415 642.88 844 822 158.0
B 0 183 40279 249.68 844 822 158.0
C 3 233 3846844 20775.27 803 809 185.1
C 14 238 131572 706.35 803 809 185.1
C 10 9 21832 113.56 803 809 185.1
D 1 52 2288188 12059.41 804 783 189.7
D 8 195 763416 4020.67 804 783 189.7
D 7 80 131112 687.11 804 783 189.7

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