ASTROSAT CZTI

Data Quality Report

Orbit 20200525_C05_002T10_9000003688_level2

Creation date: 2021-01-11T06:33:46.881818
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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/AS1C05_002T10_9000003688cztM0_level2_bc.evt modeM0/AS1C05_002T10_9000003688cztM0_level2_quad_clean.evt
Size (bytes)184,374,72075,718,080
Size175.8 MB 72.2 MB
Events in quadrant A1,124,405493,778
Events in quadrant B1,271,193495,903
Events in quadrant C1,090,070472,218
Events in quadrant D1,737,428468,204

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108830
B0114450
C0108130
D0124410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5185651.253616%
B51851202.314368%
C5185931.793635%
D5185571.099325%

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 5184 5184 0 0 0.00% 0.00%
B 5185 5185 1 1 0.02% 0.02%
C 5184 5184 3 3 0.06% 0.06%
D 5184 5184 0 0 0.00% 0.00%

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 15 174 12454 189.79 288 282 64.1
A 13 254 7813 117.42 288 282 64.1
A 12 194 1773 23.25 288 282 64.1
B 3 64 129929 2311.73 287 280 56.1
B 0 190 12807 223.37 287 280 56.1
B 10 251 10828 188.08 287 280 56.1
C 14 225 16252 241.61 274 273 66.1
C 7 247 8440 123.49 274 273 66.1
C 7 220 4527 64.32 274 273 66.1
D 8 195 450219 6836.23 282 271 65.8
D 1 255 73854 1117.97 282 271 65.8
D 1 52 54447 823.12 282 271 65.8

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