ASTROSAT CZTI

Data Quality Report

Orbit 14245

Creation date: 2024-06-27T16:52:27.415657
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_069T01_9000002102_14245cztM0_level2.evt modeM0/AS1G08_069T01_9000002102_14245cztM0_level2_quad_clean.evt
Size (bytes)572,705,28087,946,560
Size546.2 MB 83.9 MB
Events in quadrant A3,865,852561,872
Events in quadrant B3,793,575554,102
Events in quadrant C3,749,387536,732
Events in quadrant D5,454,804516,132

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159233
B0157112
C0154502
D0214812

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70971401.972665%
B70971892.663097%
C7097761.070875%
D70971432.014936%

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 7933 7099 11 11 0.14% 0.15%
B 7933 7098 36 36 0.45% 0.51%
C 7933 7099 3 3 0.04% 0.04%
D 7933 7099 24 24 0.30% 0.34%

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 9 143 338895 1904.94 887 868 177.4
A 12 189 54612 302.87 887 868 177.4
A 8 15 32970 180.91 887 868 177.4
B 0 229 246240 1474.19 877 856 166.5
B 0 189 30827 180.06 877 856 166.5
B 4 48 27736 161.49 877 856 166.5
C 3 233 382812 1916.26 859 864 199.3
C 10 22 12218 56.96 859 864 199.3
C 14 234 10144 46.56 859 864 199.3
D 8 195 1237320 6174.96 851 832 200.2
D 13 122 457452 2280.34 851 832 200.2
D 5 222 415887 2072.77 851 832 200.2

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