ASTROSAT CZTI

Data Quality Report

Orbit 29992

Creation date: 2024-06-27T20:09:32.261846
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/AS1A10_071T05_9000004308_29992cztM0_level2.evt modeM0/AS1A10_071T05_9000004308_29992cztM0_level2_quad_clean.evt
Size (bytes)540,636,48070,747,200
Size515.6 MB 67.5 MB
Events in quadrant A3,534,930442,895
Events in quadrant B5,180,210439,445
Events in quadrant C3,496,830415,322
Events in quadrant D3,742,890412,954

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143092
B0192782
C0140682
D0148132

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6173861.393164%
B61731462.365139%
C61731161.879151%
D6172901.458198%

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 7518 6174 7 7 0.09% 0.11%
B 7518 6174 1 1 0.01% 0.02%
C 7518 6174 0 0 0.00% 0.00%
D 7517 6173 45 45 0.60% 0.73%

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 8 192 25063 135.21 909 898 178.7
A 13 254 11523 59.45 909 898 178.7
A 3 137 8171 40.7 909 898 178.7
B 6 159 1683523 10226.89 890 871 164.5
B 12 111 20250 117.78 890 871 164.5
B 11 111 18208 105.37 890 871 164.5
C 14 238 144058 738.33 846 857 194.0
C 3 233 30473 152.7 846 857 194.0
C 2 114 14516 70.42 846 857 194.0
D 7 80 389888 1775.94 849 836 219.1
D 13 138 60228 271.11 849 836 219.1
D 8 195 39516 176.57 849 836 219.1

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