ASTROSAT CZTI

Data Quality Report

Orbit 09957

Creation date: 2024-06-27T15:52:58.271089
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/AS1A03_008T02_9000001422_09957cztM0_level2.evt modeM0/AS1A03_008T02_9000001422_09957cztM0_level2_quad_clean.evt
Size (bytes)576,457,920129,240,000
Size549.8 MB 123.3 MB
Events in quadrant A3,593,400851,115
Events in quadrant B3,782,715880,258
Events in quadrant C3,523,522865,376
Events in quadrant D6,050,745796,991

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016410
B01644
C016412
D01642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0251
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169641062
B017292867
C016614835
D0250041811

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74641201.607717%
B75201281.702128%
C7512941.251331%
D73643995.418251%

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 10444 7779 3 3 0.03% 0.04%
B 10444 7807 4 4 0.04% 0.05%
C 10444 7813 0 0 0.00% 0.00%
D 10443 7732 283 283 2.71% 3.66%

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 14 254 71862 384.84 907 888 184.4
A 8 15 18007 92.82 907 888 184.4
A 15 174 13322 67.42 907 888 184.4
B 4 81 78910 446.35 928 905 174.8
B 0 219 31995 177.9 928 905 174.8
B 0 214 22280 122.31 928 905 174.8
C 13 61 6737 28.45 901 905 205.0
C 8 222 2977 10.11 901 905 205.0
C 14 67 2783 9.16 901 905 205.0
D 1 52 723152 3302.01 859 837 218.8
D 12 233 701653 3203.73 859 837 218.8
D 2 33 552005 2519.62 859 837 218.8

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