ASTROSAT CZTI

Data Quality Report

Orbit 23722

Creation date: 2024-06-27T18:57:56.773579
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_027T06_9000003508_23722cztM0_level2.evt modeM0/AS1A07_027T06_9000003508_23722cztM0_level2_quad_clean.evt
Size (bytes)477,172,80095,068,800
Size455.1 MB 90.7 MB
Events in quadrant A3,187,134620,094
Events in quadrant B3,586,736633,361
Events in quadrant C3,242,998608,993
Events in quadrant D4,005,166575,417

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134092
B0145992
C0134742
D0159272

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6323470.743318%
B6323701.107069%
C6323851.344299%
D63231272.008540%

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 7558 6323 1 1 0.01% 0.02%
B 7558 6323 6 6 0.08% 0.09%
C 7558 6323 1 1 0.01% 0.02%
D 7558 6323 84 84 1.11% 1.33%

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 11999 67.28 824 808 166.3
A 0 226 7201 38.44 824 808 166.3
A 3 137 6783 35.92 824 808 166.3
B 0 229 198852 1269.0 828 810 156.1
B 0 189 105868 673.18 828 810 156.1
B 12 111 18071 110.6 828 810 156.1
C 14 238 126926 682.27 791 799 184.9
C 7 247 30687 161.67 791 799 184.9
C 13 61 5585 25.89 791 799 184.9
D 1 52 413997 2171.74 786 763 190.3
D 13 174 206712 1082.36 786 763 190.3
D 7 238 203950 1067.84 786 763 190.3

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