ASTROSAT CZTI

Data Quality Report

Orbit 16388

Creation date: 2024-06-27T17:21:58.590894
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_069T05_9000002420_16388cztM0_level2.evt modeM0/AS1A05_069T05_9000002420_16388cztM0_level2_quad_clean.evt
Size (bytes)584,723,520100,278,720
Size557.6 MB 95.6 MB
Events in quadrant A4,096,127631,859
Events in quadrant B4,722,581642,801
Events in quadrant C3,985,736611,625
Events in quadrant D4,362,340595,505

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171473
B0190152
C0167532
D0182962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79832382.981335%
B79833183.983465%
C79832302.881122%
D79832423.031442%

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 9559 7985 6 6 0.06% 0.08%
B 9559 7985 24 24 0.25% 0.30%
C 9559 7986 0 0 0.00% 0.00%
D 9559 7985 68 68 0.71% 0.85%

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 15 174 105881 513.77 1004 980 204.2
A 9 143 72686 351.19 1004 980 204.2
A 15 223 39817 190.21 1004 980 204.2
B 15 35 293480 1506.64 1007 981 194.1
B 4 173 107921 550.84 1007 981 194.1
B 0 189 97954 499.5 1007 981 194.1
C 14 238 146627 643.71 962 968 226.3
C 3 233 67857 295.6 962 968 226.3
C 8 128 12267 49.93 962 968 226.3
D 10 70 374998 1576.76 970 941 237.2
D 2 122 216453 908.45 970 941 237.2
D 12 218 56561 234.45 970 941 237.2

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