ASTROSAT CZTI

Data Quality Report

Orbit 13667

Creation date: 2024-06-27T16:44:15.996084
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/AS1G08_070T01_9000002028_13667cztM0_level2.evt modeM0/AS1G08_070T01_9000002028_13667cztM0_level2_quad_clean.evt
Size (bytes)584,426,88081,915,840
Size557.4 MB 78.1 MB
Events in quadrant A3,533,734506,746
Events in quadrant B4,242,397536,640
Events in quadrant C3,744,828485,211
Events in quadrant D5,688,114447,884

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150682
B0170111
C0152111
D0218521

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72391321.823456%
B72392583.564028%
C7239811.118939%
D72393334.600083%

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 7640 7241 6 6 0.08% 0.08%
B 7640 7241 84 84 1.10% 1.16%
C 7640 7241 0 0 0.00% 0.00%
D 7640 7241 222 222 2.91% 3.07%

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 38870 203.98 906 886 186.2
A 1 162 9819 47.97 906 886 186.2
A 0 226 8301 39.82 906 886 186.2
B 3 64 317339 1824.23 906 886 173.5
B 0 219 290515 1669.6 906 886 173.5
B 0 214 38802 218.57 906 886 173.5
C 3 233 353124 1742.67 870 874 202.1
C 13 61 6153 26.12 870 874 202.1
C 14 234 2380 7.45 870 874 202.1
D 1 52 786690 3783.64 859 835 207.7
D 5 222 556093 2673.39 859 835 207.7
D 8 195 476096 2288.23 859 835 207.7

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