ASTROSAT CZTI

Data Quality Report

Orbit 23814

Creation date: 2024-06-27T18:59:02.348535
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_113T01_9000003526_23814cztM0_level2.evt modeM0/AS1A07_113T01_9000003526_23814cztM0_level2_quad_clean.evt
Size (bytes)625,003,200102,571,200
Size596.0 MB 97.8 MB
Events in quadrant A3,375,286662,731
Events in quadrant B3,515,532686,287
Events in quadrant C3,481,985668,462
Events in quadrant D8,076,194595,663

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146962
B0150082
C0148182
D0290322

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7078380.536875%
B7079891.257240%
C70791091.539766%
D707997013.702500%

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 8693 7080 0 0 0.00% 0.00%
B 8694 7079 1 1 0.01% 0.01%
C 8694 7080 0 0 0.00% 0.00%
D 8694 7079 742 742 8.53% 10.48%

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 13 254 11257 59.04 872 855 176.2
A 3 137 7859 39.75 872 855 176.2
A 0 226 7401 37.15 872 855 176.2
B 15 33 40513 233.78 879 856 169.6
B 3 64 22943 130.21 879 856 169.6
B 12 111 20459 115.56 879 856 169.6
C 14 238 135596 670.12 854 859 201.1
C 2 16 9509 43.02 854 859 201.1
C 7 247 6498 28.04 854 859 201.1
D 1 52 2604927 13097.17 812 789 198.8
D 8 195 2090392 10509.38 812 789 198.8
D 13 174 177741 889.96 812 789 198.8

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