ASTROSAT CZTI

Data Quality Report

Orbit 05764

Creation date: 2024-06-27T14:58:51.686625
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_149T01_9000000740_05764cztM0_level2.evt modeM0/AS1A02_149T01_9000000740_05764cztM0_level2_quad_clean.evt
Size (bytes)96,451,20022,472,640
Size92.0 MB 21.4 MB
Events in quadrant A678,039143,235
Events in quadrant B703,073144,503
Events in quadrant C649,991145,367
Events in quadrant D785,127136,094

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0304
C0302
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03133113
B03181149
C03127131
D03569163

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A150730.199071%
B149330.200938%
C149810.066756%
D1498553.671562%

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 1564 1557 0 0 0.00% 0.00%
B 1564 1557 1 1 0.06% 0.06%
C 1564 1560 0 0 0.00% 0.00%
D 1564 1550 44 44 2.81% 2.84%

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 0 226 1641 38.47 176 171 38.2
A 12 194 1640 38.45 176 171 38.2
A 4 2 795 16.33 176 171 38.2
B 15 204 10490 287.4 173 169 35.9
B 0 214 9046 247.19 173 169 35.9
B 4 200 3957 105.48 173 169 35.9
C 13 61 1318 28.34 166 166 40.7
C 3 202 463 7.31 166 166 40.7
C 14 67 380 5.26 166 166 40.7
D 10 15 148027 3497.97 166 161 42.3
D 2 14 4998 114.43 166 161 42.3
D 2 206 4005 90.94 166 161 42.3

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