ASTROSAT CZTI

Data Quality Report

Orbit 30364

Creation date: 2024-06-27T20:14:19.204559
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_053T17_9000004366_30364cztM0_level2.evt modeM0/AS1A10_053T17_9000004366_30364cztM0_level2_quad_clean.evt
Size (bytes)516,611,52076,181,760
Size492.7 MB 72.7 MB
Events in quadrant A4,091,957469,993
Events in quadrant B4,568,243484,820
Events in quadrant C3,356,085464,594
Events in quadrant D3,216,987462,607

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159671
B0183181
C0137361
D0132921

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60803405.592105%
B6081741.216905%
C60811572.581812%
D6081851.397796%

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 7100 6080 258 258 3.63% 4.24%
B 7101 6081 0 0 0.00% 0.00%
C 7101 6081 82 82 1.15% 1.35%
D 7101 6081 44 44 0.62% 0.72%

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 0 13 893703 5934.88 749 733 150.5
A 12 96 291553 1932.85 749 733 150.5
A 8 192 12597 78.85 749 733 150.5
B 6 159 1596715 11133.25 751 735 143.4
B 0 190 20086 134.99 751 735 143.4
B 12 111 18090 121.07 751 735 143.4
C 3 233 415779 2465.67 720 723 168.3
C 14 238 119394 704.97 720 723 168.3
C 2 114 13814 77.77 720 723 168.3
D 8 195 179041 983.93 734 718 181.2
D 13 249 75109 410.47 734 718 181.2
D 2 250 55180 300.5 734 718 181.2

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