ASTROSAT CZTI

Data Quality Report

Orbit 07516

Creation date: 2024-06-27T15:20:45.039349
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/AS1A02_134T01_9000001036_07516cztM0_level2.evt modeM0/AS1A02_134T01_9000001036_07516cztM0_level2_quad_clean.evt
Size (bytes)536,762,880110,649,600
Size511.9 MB 105.5 MB
Events in quadrant A3,775,771708,012
Events in quadrant B3,977,944714,891
Events in quadrant C3,760,256692,503
Events in quadrant D4,181,424662,244

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169653
B0174542
C0170142
D0182982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8257410.496548%
B8257780.944653%
C8257390.472327%
D8257780.944653%

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 9042 8260 0 0 0.00% 0.00%
B 9042 8260 2 2 0.02% 0.02%
C 9042 8260 11 11 0.12% 0.13%
D 9042 8260 38 38 0.42% 0.46%

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 14 14904 69.73 973 951 200.1
A 0 226 9402 42.23 973 951 200.1
A 12 194 8696 38.71 973 951 200.1
B 0 214 111556 591.62 981 954 186.9
B 0 219 38314 199.84 981 954 186.9
B 12 111 18075 91.58 981 954 186.9
C 9 68 52976 239.8 940 944 217.0
C 8 229 33607 150.53 940 944 217.0
C 13 61 7185 28.76 940 944 217.0
D 2 152 327535 1416.83 936 904 230.5
D 2 14 82622 354.47 936 904 230.5
D 1 52 67031 286.84 936 904 230.5

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