ASTROSAT CZTI

Data Quality Report

Orbit 19932

Creation date: 2024-06-27T18:08:54.872427
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/AS1A05_160T01_9000002970_19932cztM0_level2.evt modeM0/AS1A05_160T01_9000002970_19932cztM0_level2_quad_clean.evt
Size (bytes)547,197,12085,104,000
Size521.8 MB 81.2 MB
Events in quadrant A3,418,769545,066
Events in quadrant B3,726,777548,308
Events in quadrant C4,240,332522,804
Events in quadrant D4,757,568519,591

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141252
B0151952
C0171082
D0183822

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63281251.975348%
B63281632.575853%
C63272263.571993%
D63272433.840683%

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 7603 6328 0 0 0.00% 0.00%
B 7603 6328 11 11 0.14% 0.17%
C 7602 6327 11 11 0.14% 0.17%
D 7602 6327 124 124 1.63% 1.96%

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 0 226 7734 38.62 887 872 177.7
A 3 137 6446 31.37 887 872 177.7
A 12 194 6408 31.16 887 872 177.7
B 0 189 104016 619.82 881 861 166.4
B 0 197 53453 316.01 881 861 166.4
B 7 220 44720 263.53 881 861 166.4
C 3 233 646802 3270.75 850 860 197.5
C 14 238 131949 663.77 850 860 197.5
C 4 254 93623 469.71 850 860 197.5
D 1 52 1018099 4891.15 865 844 208.0
D 7 38 422022 2025.1 865 844 208.0
D 2 234 40570 191.01 865 844 208.0

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