ASTROSAT CZTI

Data Quality Report

Orbit 29744

Creation date: 2024-06-27T20:07:20.723525
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_007T01_9000004276_29744cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29744cztM0_level2_quad_clean.evt
Size (bytes)594,884,16066,709,440
Size567.3 MB 63.6 MB
Events in quadrant A3,513,920401,652
Events in quadrant B5,656,851398,248
Events in quadrant C3,785,693389,696
Events in quadrant D4,625,109381,624

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146483
B0209472
C0153602
D0182852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6431821.275074%
B64312013.125486%
C64311632.534598%
D6431951.477220%

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 7636 6431 0 0 0.00% 0.00%
B 7636 6431 38 38 0.50% 0.59%
C 7636 6431 6 6 0.08% 0.09%
D 7636 6431 35 35 0.46% 0.54%

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 96 13290 69.73 905 891 177.8
A 13 254 12674 66.26 905 891 177.8
A 3 137 8296 41.64 905 891 177.8
B 6 159 1878272 11159.3 890 868 168.2
B 0 229 210670 1247.06 890 868 168.2
B 0 190 46179 269.33 890 868 168.2
C 3 233 169131 849.66 862 872 198.0
C 14 238 141425 709.75 862 872 198.0
C 10 22 71696 357.64 862 872 198.0
D 8 195 953600 4671.29 873 852 204.0
D 7 80 199217 972.58 873 852 204.0
D 13 153 54864 264.82 873 852 204.0

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