ASTROSAT CZTI

Data Quality Report

Orbit 06575

Creation date: 2024-06-27T15:08:58.770113
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/AS1C02_008T01_9000000884_06575cztM0_level2.evt modeM0/AS1C02_008T01_9000000884_06575cztM0_level2_quad_clean.evt
Size (bytes)535,152,96075,510,720
Size510.4 MB 72.0 MB
Events in quadrant A3,632,371442,422
Events in quadrant B3,844,822445,345
Events in quadrant C3,552,101440,795
Events in quadrant D4,656,623423,988

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160714
B0163923
C0160073
D0193083

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76732042.658673%
B76732413.140884%
C76731471.915809%
D76732753.583996%

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 7878 7675 0 0 0.00% 0.00%
B 7878 7675 6 6 0.08% 0.08%
C 7878 7675 0 0 0.00% 0.00%
D 7878 7675 140 140 1.78% 1.82%

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 15 239 40971 212.15 921 899 188.9
A 8 15 28391 145.55 921 899 188.9
A 13 251 16052 80.22 921 899 188.9
B 0 198 73260 395.97 932 909 182.7
B 4 81 45988 246.71 932 909 182.7
B 4 172 40957 219.18 932 909 182.7
C 13 61 7058 28.61 907 910 214.9
C 9 237 6307 25.11 907 910 214.9
C 1 16 4756 17.9 907 910 214.9
D 2 63 783890 3516.78 895 867 222.7
D 2 33 398275 1784.87 895 867 222.7
D 2 152 41010 180.29 895 867 222.7

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