ASTROSAT CZTI

Data Quality Report

Orbit 19299

Creation date: 2024-06-27T18:01:07.150669
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/AS1A05_204T01_9000002856_19299cztM0_level2.evt modeM0/AS1A05_204T01_9000002856_19299cztM0_level2_quad_clean.evt
Size (bytes)624,216,960114,125,760
Size595.3 MB 108.8 MB
Events in quadrant A3,833,048744,834
Events in quadrant B4,080,882752,578
Events in quadrant C3,965,510721,926
Events in quadrant D6,470,183668,247

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169392
B0175702
C0172012
D0248342

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8178450.550257%
B8178921.124969%
C81791531.870644%
D817989410.930432%

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 8758 8180 3 3 0.03% 0.04%
B 8758 8180 3 3 0.03% 0.04%
C 8759 8181 10 10 0.11% 0.12%
D 8759 8181 663 663 7.57% 8.10%

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 5 16 18423 87.19 986 964 200.2
A 9 143 11452 52.38 986 964 200.2
A 13 254 11222 51.23 986 964 200.2
B 0 229 166267 871.91 985 959 189.6
B 0 190 24193 122.54 985 959 189.6
B 12 111 23476 118.76 985 959 189.6
C 14 238 147067 647.41 953 958 225.7
C 9 54 90650 397.43 953 958 225.7
C 13 61 6777 25.78 953 958 225.7
D 1 52 1973221 8873.94 918 891 222.3
D 13 138 611709 2748.2 918 891 222.3
D 11 176 159586 714.0 918 891 222.3

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