ASTROSAT CZTI

Data Quality Report

Orbit 04178

Creation date: 2024-06-27T14:38:25.945022
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/AS1G05_240T01_9000000536_04178cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04178cztM0_level2_quad_clean.evt
Size (bytes)526,484,16070,159,680
Size502.1 MB 66.9 MB
Events in quadrant A3,246,401428,075
Events in quadrant B6,218,670417,296
Events in quadrant C2,763,578428,015
Events in quadrant D3,291,238413,167

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137442
B0230461
C0126671
D0142331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6267711.132918%
B62672864.563587%
C626790.143609%
D6267310.494655%

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 7292 6268 26 26 0.36% 0.41%
B 7292 6268 181 181 2.48% 2.89%
C 7292 6268 0 0 0.00% 0.00%
D 7292 6268 11 11 0.15% 0.18%

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 3 1 240455 1609.82 728 711 148.9
A 0 50 173700 1161.58 728 711 148.9
A 13 14 10642 66.68 728 711 148.9
B 3 0 3088066 22186.99 721 703 139.2
B 8 3 180977 1295.52 721 703 139.2
B 10 16 54765 388.51 721 703 139.2
C 10 65 6342 34.12 704 708 165.1
C 13 61 5865 31.23 704 708 165.1
C 9 144 5822 30.97 704 708 165.1
D 2 232 385101 2229.57 706 685 172.4
D 13 239 89321 514.08 706 685 172.4
D 10 172 39738 226.5 706 685 172.4

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