ASTROSAT CZTI

Data Quality Report

Orbit 23183

Creation date: 2024-06-27T18:50:59.769366
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/AS1A08_003T05_9000003426_23183cztM0_level2.evt modeM0/AS1A08_003T05_9000003426_23183cztM0_level2_quad_clean.evt
Size (bytes)560,378,88079,128,000
Size534.4 MB 75.5 MB
Events in quadrant A3,334,844487,404
Events in quadrant B3,408,027499,964
Events in quadrant C3,606,266476,006
Events in quadrant D6,154,256451,818

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141542
B0142762
C0148212
D0228985

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6897801.159925%
B6897821.188923%
C68971662.406844%
D689674710.832367%

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 7772 6897 0 0 0.00% 0.00%
B 7772 6897 1 1 0.01% 0.01%
C 7772 6897 22 22 0.28% 0.32%
D 7770 6895 570 570 7.34% 8.27%

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 9953 52.44 863 846 173.7
A 3 137 7637 39.11 863 846 173.7
A 0 226 7347 37.44 863 846 173.7
B 0 190 32776 192.84 855 832 165.7
B 12 111 20163 116.7 855 832 165.7
B 11 111 18487 106.58 855 832 165.7
C 0 10 178879 917.53 824 830 194.1
C 14 238 130102 666.17 824 830 194.1
C 7 247 45925 232.39 824 830 194.1
D 1 52 2524322 12521.91 815 789 201.5
D 12 233 294736 1458.58 815 789 201.5
D 7 238 120696 594.99 815 789 201.5

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