ASTROSAT CZTI

Data Quality Report

Orbit 17530

Creation date: 2024-06-27T17:37:39.475099
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/AS1A05_140T01_9000002596_17530cztM0_level2.evt modeM0/AS1A05_140T01_9000002596_17530cztM0_level2_quad_clean.evt
Size (bytes)469,535,04068,218,560
Size447.8 MB 65.1 MB
Events in quadrant A3,196,219417,233
Events in quadrant B3,307,956419,889
Events in quadrant C3,797,505399,814
Events in quadrant D3,494,579393,250

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132272
B0136132
C0154622
D0141122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62321252.005777%
B62321332.134146%
C62321792.872272%
D6232991.588575%

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 7422 6232 0 0 0.00% 0.00%
B 7422 6232 1 1 0.01% 0.02%
C 7422 6232 0 0 0.00% 0.00%
D 7422 6232 13 13 0.18% 0.21%

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 0 226 7272 39.17 831 814 164.9
A 12 194 6041 31.7 831 814 164.9
A 3 137 5699 29.63 831 814 164.9
B 10 245 72228 463.52 822 803 154.1
B 12 111 18300 113.55 822 803 154.1
B 11 111 15981 98.5 822 803 154.1
C 3 233 540047 2936.79 793 798 183.6
C 14 238 123731 669.5 793 798 183.6
C 5 218 38946 207.76 793 798 183.6
D 5 222 288848 1469.52 809 786 196.0
D 13 189 73809 372.52 809 786 196.0
D 7 223 30621 152.2 809 786 196.0

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