ASTROSAT CZTI

Data Quality Report

Orbit 30083

Creation date: 2024-06-27T20:10:50.334262
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_30083cztM0_level2.evt modeM0/AS1A10_071T10_9000004328_30083cztM0_level2_quad_clean.evt
Size (bytes)625,023,36092,862,720
Size596.1 MB 88.6 MB
Events in quadrant A3,981,638578,510
Events in quadrant B6,264,059578,341
Events in quadrant C4,030,814550,434
Events in quadrant D4,109,331547,815

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167712
B0245062
C0168702
D0170142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80052703.372892%
B80064015.008743%
C80063464.321759%
D80061912.385711%

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 8930 8008 0 0 0.00% 0.00%
B 8931 8009 6 6 0.07% 0.07%
C 8931 8009 4 4 0.04% 0.05%
D 8931 8009 7 7 0.08% 0.09%

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 24256 112.17 1026 1003 207.3
A 13 254 13373 59.67 1026 1003 207.3
A 3 137 10970 48.08 1026 1003 207.3
B 6 159 2226975 11469.78 1002 977 194.1
B 0 229 71557 363.67 1002 977 194.1
B 12 111 25213 124.88 1002 977 194.1
C 14 238 168854 732.03 974 977 229.3
C 14 254 19770 81.95 974 977 229.3
C 2 114 18922 78.25 974 977 229.3
D 8 195 150109 625.76 989 964 238.3
D 7 223 101953 423.72 989 964 238.3
D 13 104 52141 214.72 989 964 238.3

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