ASTROSAT CZTI

Data Quality Report

Orbit 24030

Creation date: 2024-06-27T19:01:20.344927
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/AS1A07_165T01_9000003558_24030cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24030cztM0_level2_quad_clean.evt
Size (bytes)497,531,520135,118,080
Size474.5 MB 128.9 MB
Events in quadrant A3,202,352928,854
Events in quadrant B3,681,983934,771
Events in quadrant C3,690,228891,991
Events in quadrant D4,049,730881,131

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135551
B0150071
C0150621
D0162881

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6544951.451711%
B65451712.612681%
C65451502.291826%
D65451021.558442%

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 7554 6544 0 0 0.00% 0.00%
B 7555 6546 13 13 0.17% 0.20%
C 7555 6546 7 7 0.09% 0.11%
D 7555 6545 15 15 0.20% 0.23%

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 3 1 18277 106.84 824 808 163.5
A 13 254 11027 62.5 824 808 163.5
A 0 226 7233 39.3 824 808 163.5
B 0 189 349732 2332.82 812 796 149.6
B 0 197 102651 680.95 812 796 149.6
B 15 32 26573 172.33 812 796 149.6
C 7 247 454869 2553.09 779 783 177.9
C 14 238 126577 707.27 779 783 177.9
C 0 239 70950 394.51 779 783 177.9
D 8 195 851884 4432.67 799 778 192.0
D 1 52 135013 699.11 799 778 192.0
D 2 234 30083 152.62 799 778 192.0

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