ASTROSAT CZTI

Data Quality Report

Orbit 22005

Creation date: 2024-06-27T18:35:13.081493
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_153T02_9000003250_22005cztM0_level2.evt modeM0/AS1A07_153T02_9000003250_22005cztM0_level2_quad_clean.evt
Size (bytes)591,978,240104,774,400
Size564.6 MB 99.9 MB
Events in quadrant A3,529,765694,544
Events in quadrant B3,660,876705,534
Events in quadrant C3,534,018662,890
Events in quadrant D6,704,029597,364

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152612
B0156252
C0152392
D0249032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7353620.843193%
B73521211.645811%
C73521121.523395%
D7352109514.893906%

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 8673 7354 1 1 0.01% 0.01%
B 8672 7353 1 1 0.01% 0.01%
C 8672 7354 0 0 0.00% 0.00%
D 8672 7354 946 946 10.91% 12.86%

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 15 236 20074 104.77 908 889 183.1
A 13 254 12736 64.69 908 889 183.1
A 3 137 7742 37.42 908 889 183.1
B 0 190 31070 174.43 910 885 173.0
B 3 64 28000 156.69 910 885 173.0
B 0 230 23629 131.43 910 885 173.0
C 14 238 136965 672.75 867 873 202.3
C 0 10 14107 65.42 867 873 202.3
C 13 61 6041 25.55 867 873 202.3
D 7 238 2783040 14004.8 824 799 198.7
D 11 176 526626 2646.82 824 799 198.7
D 1 52 113280 566.19 824 799 198.7

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