ASTROSAT CZTI

Data Quality Report

Orbit 29979

Creation date: 2024-06-27T20:09:26.680974
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_053T11_9000004302_29979cztM0_level2.evt modeM0/AS1A10_053T11_9000004302_29979cztM0_level2_quad_clean.evt
Size (bytes)550,630,08086,751,360
Size525.1 MB 82.7 MB
Events in quadrant A3,522,952561,176
Events in quadrant B5,450,638554,245
Events in quadrant C3,501,088527,445
Events in quadrant D3,756,430526,201

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142301
B0202634
C0142151
D0150301

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65651031.568926%
B65651562.376238%
C65651251.904037%
D6565931.416603%

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 7785 6566 1 1 0.01% 0.02%
B 7785 6566 2 2 0.03% 0.03%
C 7785 6566 0 0 0.00% 0.00%
D 7785 6566 9 9 0.12% 0.14%

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 13093 68.29 907 890 178.7
A 13 254 12931 67.38 907 890 178.7
A 3 137 8211 40.97 907 890 178.7
B 6 159 1864974 11372.17 880 862 163.9
B 6 36 51128 306.65 880 862 163.9
B 0 190 37784 225.25 880 862 163.9
C 14 238 140093 711.13 849 856 195.8
C 3 233 37484 187.07 849 856 195.8
C 2 114 15182 73.17 849 856 195.8
D 8 195 226636 1100.24 876 856 205.2
D 1 52 100401 485.09 876 856 205.2
D 2 250 54370 260.78 876 856 205.2

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