ASTROSAT CZTI

Data Quality Report

Orbit 23713

Creation date: 2024-06-27T18:57:48.906936
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/AS1A07_054T01_9000003504_23713cztM0_level2.evt modeM0/AS1A07_054T01_9000003504_23713cztM0_level2_quad_clean.evt
Size (bytes)511,312,320138,746,880
Size487.6 MB 132.3 MB
Events in quadrant A3,322,092930,964
Events in quadrant B3,528,306951,576
Events in quadrant C3,427,611919,784
Events in quadrant D4,702,909883,296

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150882
B0154682
C0152002
D0194002

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7427690.929043%
B74271251.683048%
C7427931.252188%
D74271221.642655%

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 7872 7427 0 0 0.00% 0.00%
B 7872 7427 7 7 0.09% 0.09%
C 7872 7427 0 0 0.00% 0.00%
D 7872 7427 47 47 0.60% 0.63%

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 13 254 11847 63.7 861 841 172.8
A 3 137 7694 39.67 861 841 172.8
A 0 226 7322 37.51 861 841 172.8
B 0 245 52746 316.87 863 838 163.8
B 0 189 41738 249.67 863 838 163.8
B 5 172 20940 122.71 863 838 163.8
C 14 238 131622 675.77 833 837 193.5
C 7 247 46040 233.57 833 837 193.5
C 13 61 5799 25.64 833 837 193.5
D 7 238 969309 4813.16 833 806 201.2
D 13 174 288063 1427.58 833 806 201.2
D 1 52 223065 1104.56 833 806 201.2

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