ASTROSAT CZTI

Data Quality Report

Orbit 10192

Creation date: 2024-06-27T15:56:10.057285
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/AS1A03_050T01_9000001468_10192cztM0_level2.evt modeM0/AS1A03_050T01_9000001468_10192cztM0_level2_quad_clean.evt
Size (bytes)442,226,880111,202,560
Size421.7 MB 106.1 MB
Events in quadrant A3,031,867731,067
Events in quadrant B3,347,813733,710
Events in quadrant C2,938,015735,801
Events in quadrant D3,620,205700,861

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137243
B0142822
C0136142
D0150452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6685230.344054%
B6685500.747943%
C6685100.149589%
D6686500.747831%

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 7540 6686 1 1 0.01% 0.01%
B 7540 6686 7 7 0.09% 0.10%
C 7540 6686 0 0 0.00% 0.00%
D 7541 6687 25 25 0.33% 0.37%

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 15 174 10902 63.86 781 762 158.8
A 3 1 10206 59.47 781 762 158.8
A 0 226 7402 41.81 781 762 158.8
B 11 51 125726 852.26 780 764 146.6
B 0 189 43255 289.8 780 764 146.6
B 5 255 40759 272.77 780 764 146.6
C 14 67 7745 40.53 750 752 172.5
C 13 61 5519 27.63 750 752 172.5
C 14 234 3579 16.39 750 752 172.5
D 8 195 324381 1813.07 748 726 178.5
D 1 52 132294 737.03 748 726 178.5
D 7 71 73414 407.19 748 726 178.5

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