ASTROSAT CZTI

Data Quality Report

Orbit 30079

Creation date: 2024-06-27T20:10:47.447429
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_071T10_9000004328_30079cztM0_level2.evt modeM0/AS1A10_071T10_9000004328_30079cztM0_level2_quad_clean.evt
Size (bytes)569,687,04068,739,840
Size543.3 MB 65.6 MB
Events in quadrant A3,355,905434,197
Events in quadrant B5,088,586439,070
Events in quadrant C3,466,317410,026
Events in quadrant D4,927,113369,287

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133862
B0190372
C0139142
D0184192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6137540.879909%
B61371191.939058%
C6137811.319863%
D613769811.373635%

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 7447 6138 2 2 0.03% 0.03%
B 7447 6138 2 2 0.03% 0.03%
C 7447 6138 0 0 0.00% 0.00%
D 7447 6138 500 500 6.71% 8.15%

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 8 192 23356 131.51 864 850 171.1
A 13 254 11755 63.72 864 850 171.1
A 3 137 8001 41.79 864 850 171.1
B 6 159 1642021 10128.4 856 837 162.0
B 0 229 84714 517.64 856 837 162.0
B 12 111 19390 114.5 856 837 162.0
C 3 233 151970 803.42 812 821 188.1
C 14 238 136672 722.11 812 821 188.1
C 2 114 14315 71.73 812 821 188.1
D 13 104 1643449 8899.64 788 772 184.6
D 8 195 158116 852.45 788 772 184.6
D 1 52 68624 367.61 788 772 184.6

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