ASTROSAT CZTI

Data Quality Report

Orbit 30528

Creation date: 2024-06-27T20:16:33.831554
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_053T14_9000004390_30528cztM0_level2.evt modeM0/AS1A10_053T14_9000004390_30528cztM0_level2_quad_clean.evt
Size (bytes)594,155,52075,363,840
Size566.6 MB 71.9 MB
Events in quadrant A3,442,922483,883
Events in quadrant B5,373,506475,930
Events in quadrant C4,254,217438,941
Events in quadrant D4,504,189450,179

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139151
B0197401
C0166301
D0177461

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62021091.757498%
B62022123.418252%
C62023255.240245%
D62031742.805094%

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 7517 6203 2 2 0.03% 0.03%
B 7517 6203 22 22 0.29% 0.35%
C 7517 6203 119 119 1.58% 1.92%
D 7518 6204 86 86 1.14% 1.39%

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 12063 63.74 889 875 175.5
A 13 254 11275 59.25 889 875 175.5
A 3 137 7924 40.16 889 875 175.5
B 6 159 1691420 10593.62 862 845 159.6
B 6 36 124760 776.49 862 845 159.6
B 0 229 61063 377.34 862 845 159.6
C 15 208 659631 3529.53 811 820 186.7
C 10 22 206897 1104.04 811 820 186.7
C 14 238 136916 729.12 811 820 186.7
D 1 52 714186 3652.07 842 824 195.3
D 8 195 259794 1325.8 842 824 195.3
D 13 104 118707 603.5 842 824 195.3

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