ASTROSAT CZTI

Data Quality Report

Orbit 01290

Creation date: 2024-06-27T14:10:28.345399
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/AS1G04_002T02_9000000230_01290cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01290cztM0_level2_quad_clean.evt
Size (bytes)1,243,647,36086,941,440
Size1.2 GB 82.9 MB
Events in quadrant A7,144,968592,772
Events in quadrant B8,411,448592,009
Events in quadrant C6,915,319576,875
Events in quadrant D14,799,964454,103

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254542
B0292321
C0247911
D0485171

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5956320.537273%
B59561121.880457%
C595690.151108%
D5956243040.799194%

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 6896 5956 233 233 3.38% 3.91%
B 6896 5956 631 631 9.15% 10.59%
C 6896 5957 202 202 2.93% 3.39%
D 6896 5956 4334 4334 62.85% 72.77%

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 4 32 93757 207.74 1834 1849 442.4
A 15 127 10123 18.7 1834 1849 442.4
A 11 79 8208 14.37 1834 1849 442.4
B 10 213 458964 1025.23 1896 1901 445.8
B 8 4 323878 722.22 1896 1901 445.8
B 12 52 129779 286.84 1896 1901 445.8
C 15 241 269063 567.4 1688 1738 471.1
C 3 79 25490 50.41 1688 1738 471.1
C 3 111 21969 42.94 1688 1738 471.1
D 13 169 8896154 20314.95 1418 1466 437.8
D 2 252 456854 1040.08 1418 1466 437.8
D 10 84 52986 117.67 1418 1466 437.8

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