ASTROSAT CZTI

Data Quality Report

Orbit 03236

Creation date: 2024-06-27T14:26:34.076260
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/AS1G05_221T01_9000000438_03236cztM0_level2.evt modeM0/AS1G05_221T01_9000000438_03236cztM0_level2_quad_clean.evt
Size (bytes)904,769,280170,812,800
Size862.9 MB 162.9 MB
Events in quadrant A6,365,0621,074,592
Events in quadrant B7,334,0751,072,333
Events in quadrant C6,745,9311,068,574
Events in quadrant D6,048,2771,032,284

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02700
B02700
C02700
D02700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0286452
B0305212
C0298802
D0281132

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A134054183.118239%
B134053162.357329%
C134053662.730325%
D134051771.320403%

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 13855 13405 67 67 0.48% 0.50%
B 13855 13405 9 9 0.06% 0.07%
C 13854 13405 173 173 1.25% 1.29%
D 13854 13404 11 11 0.08% 0.08%

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 0 118 446915 1424.42 1518 1486 312.7
A 0 226 55524 172.81 1518 1486 312.7
A 12 194 16239 47.18 1518 1486 312.7
B 15 204 1141390 3839.27 1545 1507 296.9
B 2 249 63279 208.05 1545 1507 296.9
B 15 54 31771 101.93 1545 1507 296.9
C 14 223 771119 2241.35 1470 1480 343.4
C 6 80 139718 402.58 1470 1480 343.4
C 8 128 33649 93.68 1470 1480 343.4
D 13 114 129235 357.54 1470 1424 357.5
D 13 223 81844 224.97 1470 1424 357.5
D 13 120 55340 150.83 1470 1424 357.5

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
Veto Counter