ASTROSAT CZTI

Data Quality Report

Orbit 13407

Creation date: 2024-06-27T16:40:21.853934
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/AS1A04_103T01_9000001988_13407cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13407cztM0_level2_quad_clean.evt
Size (bytes)593,447,040104,618,880
Size566.0 MB 99.8 MB
Events in quadrant A3,764,317665,048
Events in quadrant B4,262,142678,058
Events in quadrant C3,746,968663,158
Events in quadrant D5,657,449606,623

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166733
B0179952
C0164952
D0224292

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7989300.375516%
B79891942.428339%
C7989280.350482%
D79894125.157091%

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 9015 7992 4 4 0.04% 0.05%
B 9015 7991 61 61 0.68% 0.76%
C 9015 7992 0 0 0.00% 0.00%
D 9015 7992 423 423 4.69% 5.29%

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 69 41523 207.33 961 939 195.7
A 1 162 12672 59.94 961 939 195.7
A 0 226 8668 39.49 961 939 195.7
B 3 64 410174 2222.6 963 938 184.1
B 0 230 27621 144.92 963 938 184.1
B 12 111 22355 116.32 963 938 184.1
C 3 233 75220 339.36 940 946 218.9
C 14 220 8903 36.36 940 946 218.9
C 13 61 6812 26.8 940 946 218.9
D 5 222 1338405 6128.99 908 882 218.2
D 8 195 629785 2881.85 908 882 218.2
D 1 52 168898 769.91 908 882 218.2

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