ASTROSAT CZTI

Data Quality Report

Orbit 03088

Creation date: 2024-06-27T14:24:29.663807
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_237T03_9000000426_03088cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03088cztM0_level2_quad_clean.evt
Size (bytes)611,648,64084,072,960
Size583.3 MB 80.2 MB
Events in quadrant A4,198,274497,005
Events in quadrant B4,451,540495,171
Events in quadrant C4,365,827494,583
Events in quadrant D4,941,288478,483

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180484
B0187203
C0187723
D0205093

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83542553.052430%
B83542533.028489%
C83542703.231985%
D83544315.159205%

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 8554 8357 20 20 0.23% 0.24%
B 8554 8357 5 5 0.06% 0.06%
C 8554 8357 44 44 0.51% 0.53%
D 8554 8357 147 147 1.72% 1.76%

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 0 50 139092 664.58 1008 986 207.8
A 12 247 49511 233.51 1008 986 207.8
A 13 251 36708 171.9 1008 986 207.8
B 15 204 236291 1179.42 1018 992 199.5
B 0 219 141979 706.69 1018 992 199.5
B 2 249 30550 148.16 1018 992 199.5
C 0 219 171534 745.48 974 978 228.8
C 14 223 130768 567.3 974 978 228.8
C 1 16 113079 489.98 974 978 228.8
D 1 7 703406 2958.84 969 937 237.4
D 10 85 183690 769.77 969 937 237.4
D 13 46 84645 352.58 969 937 237.4

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