ASTROSAT CZTI

Data Quality Report

Orbit 32332

Creation date: 2024-06-27T20:38:58.124332
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/AS1A10_005T01_9000004700_32332cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32332cztM0_level2_quad_clean.evt
Size (bytes)1,307,211,840177,050,880
Size1.2 GB 168.8 MB
Events in quadrant A6,700,6581,189,378
Events in quadrant B12,500,4151,097,588
Events in quadrant C7,301,7731,106,096
Events in quadrant D12,193,1881,051,758

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0281894
B0465003
C0298523
D0455443

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02700
B02700
C02700
D02700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A132721571.182942%
B1327211928.981314%
C132725053.805003%
D1327210247.715491%

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 15477 13275 1 1 0.01% 0.01%
B 15477 13275 646 646 4.17% 4.87%
C 15477 13275 238 238 1.54% 1.79%
D 15477 13275 675 675 4.36% 5.08%

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 12 189 395228 1207.72 1622 1588 325.9
A 13 254 27639 79.93 1622 1588 325.9
A 13 6 26727 77.13 1622 1588 325.9
B 6 159 3728843 12676.34 1551 1512 294.0
B 5 172 2175758 7394.43 1551 1512 294.0
B 0 190 204725 691.11 1551 1512 294.0
C 0 10 860194 2393.28 1534 1544 358.8
C 14 238 244778 677.95 1534 1544 358.8
C 4 175 82688 226.17 1534 1544 358.8
D 8 195 3206101 8809.81 1540 1501 363.8
D 13 174 760361 2086.19 1540 1501 363.8
D 13 249 673922 1848.56 1540 1501 363.8

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