ASTROSAT CZTI

Data Quality Report

Orbit 12410

Creation date: 2024-06-27T16:26:54.148207
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/AS1A04_023T01_9000001842_12410cztM0_level2.evt modeM0/AS1A04_023T01_9000001842_12410cztM0_level2_quad_clean.evt
Size (bytes)599,987,52081,426,240
Size572.2 MB 77.7 MB
Events in quadrant A4,341,917484,335
Events in quadrant B4,610,452482,016
Events in quadrant C3,728,027485,529
Events in quadrant D4,955,233465,021

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178233
B0187672
C0164752
D0201232

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78812172.753458%
B78813704.694836%
C78811602.030199%
D78814025.100876%

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 8517 7882 2 2 0.02% 0.03%
B 8517 7882 119 119 1.40% 1.51%
C 8517 7882 1 1 0.01% 0.01%
D 8517 7882 118 118 1.39% 1.50%

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 1 162 146162 720.22 974 952 201.6
A 13 251 123139 606.03 974 952 201.6
A 1 178 76016 372.31 974 952 201.6
B 4 239 379514 2025.62 956 931 186.9
B 3 64 289120 1541.96 956 931 186.9
B 3 209 64182 338.43 956 931 186.9
C 15 208 23609 102.11 948 952 221.9
C 13 61 6864 26.64 948 952 221.9
C 8 128 4388 15.49 948 952 221.9
D 1 52 966902 4240.37 935 908 227.8
D 10 157 136354 594.56 935 908 227.8
D 13 104 102779 447.18 935 908 227.8

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