ASTROSAT CZTI

Data Quality Report

Orbit 30503

Creation date: 2024-06-27T20:16:08.907091
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_053T47_9000004386_30503cztM0_level2.evt modeM0/AS1A10_053T47_9000004386_30503cztM0_level2_quad_clean.evt
Size (bytes)161,570,88015,914,880
Size154.1 MB 15.2 MB
Events in quadrant A984,70688,012
Events in quadrant B1,602,41587,240
Events in quadrant C1,038,22181,399
Events in quadrant D1,131,12280,679

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041571
B061371
C043011
D045581

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1976341.720648%
B1976663.340081%
C1976643.238866%
D1976301.518219%

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 1976 1976 1 1 0.05% 0.05%
B 1976 1976 8 8 0.40% 0.40%
C 1976 1976 8 8 0.40% 0.40%
D 1976 1976 19 19 0.96% 0.96%

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 8 192 12702 241.77 249 244 51.5
A 12 96 7659 143.9 249 244 51.5
A 13 254 3737 67.79 249 244 51.5
B 6 159 542610 11025.52 246 240 49.2
B 0 229 62267 1260.91 246 240 49.2
B 6 36 14688 293.7 246 240 49.2
C 10 22 49766 888.4 232 234 55.8
C 14 238 38839 692.41 232 234 55.8
C 3 233 27454 488.21 232 234 55.8
D 8 195 145482 2470.61 237 229 58.8
D 2 120 41826 707.52 237 229 58.8
D 2 250 20046 337.07 237 229 58.8

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