ASTROSAT CZTI

Data Quality Report

Orbit 32075

Creation date: 2024-06-27T20:36:11.043327
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/AS1C06_002T04_9000004684_32075cztM0_level2.evt modeM0/AS1C06_002T04_9000004684_32075cztM0_level2_quad_clean.evt
Size (bytes)579,121,92091,480,320
Size552.3 MB 87.2 MB
Events in quadrant A2,792,347623,702
Events in quadrant B7,409,453588,674
Events in quadrant C3,400,462587,223
Events in quadrant D3,555,548576,185

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117811
B0259901
C0136751
D0142531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5640170.301418%
B564081614.468085%
C56401723.049645%
D56401011.790780%

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 6935 5640 0 0 0.00% 0.00%
B 6935 5640 491 491 7.08% 8.71%
C 6935 5640 92 92 1.33% 1.63%
D 6935 5641 97 97 1.40% 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 13 254 10533 68.9 721 709 142.6
A 13 6 7001 44.13 721 709 142.6
A 3 137 6712 42.1 721 709 142.6
B 10 245 3013818 23229.26 695 678 129.7
B 6 159 1549678 11941.73 695 678 129.7
B 0 190 51429 391.26 695 678 129.7
C 0 10 548915 3515.19 677 684 156.0
C 14 238 113523 723.51 677 684 156.0
C 3 233 33734 211.91 677 684 156.0
D 8 195 404815 2523.52 680 662 160.2
D 12 218 400839 2498.69 680 662 160.2
D 12 227 63469 392.16 680 662 160.2

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