ASTROSAT CZTI

Data Quality Report

Orbit 32208

Creation date: 2024-06-27T20:37:37.098761
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_057T01_9000004692_32208cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32208cztM0_level2_quad_clean.evt
Size (bytes)601,891,200119,684,160
Size574.0 MB 114.1 MB
Events in quadrant A3,330,920803,748
Events in quadrant B5,585,234815,138
Events in quadrant C3,548,595806,553
Events in quadrant D5,321,407743,438

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139863
B0210402
C0145732
D0201242

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6542410.626720%
B65422413.683889%
C65421732.644451%
D65433575.456213%

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 7867 6543 0 0 0.00% 0.00%
B 7867 6543 53 53 0.67% 0.81%
C 7867 6543 11 11 0.14% 0.17%
D 7868 6544 259 259 3.29% 3.96%

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 36550 213.29 848 834 167.5
A 13 254 12246 68.15 848 834 167.5
A 15 174 8864 47.95 848 834 167.5
B 6 159 1881488 11975.52 845 828 157.0
B 5 172 206251 1308.08 845 828 157.0
B 0 229 67432 424.12 845 828 157.0
C 14 238 147370 761.3 828 834 192.5
C 0 10 71051 364.8 828 834 192.5
C 4 175 49069 250.6 828 834 192.5
D 8 195 663845 3511.77 796 777 188.8
D 5 172 493670 2610.48 796 777 188.8
D 13 249 395002 2087.91 796 777 188.8

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