ASTROSAT CZTI

Data Quality Report

Orbit 13011

Creation date: 2024-06-27T16:35:03.353931
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/AS1T02_002T01_9000001914_13011cztM0_level2.evt modeM0/AS1T02_002T01_9000001914_13011cztM0_level2_quad_clean.evt
Size (bytes)437,679,360112,426,560
Size417.4 MB 107.2 MB
Events in quadrant A2,898,731771,577
Events in quadrant B4,387,267715,778
Events in quadrant C2,586,884777,661
Events in quadrant D2,988,304734,936

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124492
B0167901
C0117301
D0128271

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5792240.414365%
B579280413.881215%
C5792110.189917%
D57921071.847376%

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 7103 5794 3 3 0.04% 0.05%
B 7103 5793 490 490 6.90% 8.46%
C 7103 5794 0 0 0.00% 0.00%
D 7103 5794 53 53 0.75% 0.91%

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 12 189 206514 1495.47 686 672 137.6
A 15 223 21206 149.18 686 672 137.6
A 9 143 10350 70.31 686 672 137.6
B 4 239 1772250 15267.09 626 613 116.0
B 3 64 53165 452.87 626 613 116.0
B 3 209 36939 313.04 626 613 116.0
C 13 61 4698 26.83 662 665 150.3
C 14 234 3831 21.07 662 665 150.3
C 12 4 2140 9.81 662 665 150.3
D 1 52 403006 2646.39 649 632 152.0
D 8 195 65049 423.67 649 632 152.0
D 1 7 43382 281.16 649 632 152.0

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