ASTROSAT CZTI

Data Quality Report

Orbit 04213

Creation date: 2024-06-27T14:38:53.113322
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/AS1G05_240T01_9000000536_04213cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04213cztM0_level2_quad_clean.evt
Size (bytes)457,064,64055,471,680
Size435.9 MB 52.9 MB
Events in quadrant A3,306,082314,881
Events in quadrant B3,452,326318,357
Events in quadrant C2,990,131307,521
Events in quadrant D3,663,489296,856

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138073
B0141692
C0130892
D0152522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63291772.796650%
B63291923.033655%
C6329921.453626%
D63293044.803286%

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 7509 6330 33 33 0.44% 0.52%
B 7509 6330 44 44 0.59% 0.70%
C 7509 6330 0 0 0.00% 0.00%
D 7509 6330 149 149 1.98% 2.35%

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 15 234 124246 769.01 791 773 160.6
A 0 50 73204 451.11 791 773 160.6
A 14 111 19192 114.72 791 773 160.6
B 3 0 165932 1079.98 798 782 152.9
B 8 3 69113 446.84 798 782 152.9
B 15 204 49208 316.68 798 782 152.9
C 9 144 13610 72.52 761 763 177.2
C 13 61 6276 31.12 761 763 177.2
C 12 4 2705 10.96 761 763 177.2
D 2 232 522097 2848.72 751 729 183.0
D 13 239 111801 606.89 751 729 183.0
D 10 172 72772 393.64 751 729 183.0

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