ASTROSAT CZTI

Data Quality Report

Orbit 12206

Creation date: 2024-06-27T16:23:49.740253
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/AS1A04_066T01_9000001802_12206cztM0_level2.evt modeM0/AS1A04_066T01_9000001802_12206cztM0_level2_quad_clean.evt
Size (bytes)602,766,720132,848,640
Size574.8 MB 126.7 MB
Events in quadrant A4,494,846896,516
Events in quadrant B5,693,977852,438
Events in quadrant C3,518,258893,537
Events in quadrant D4,039,282859,127

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185582
B0219251
C0158751
D0174641

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74982833.774340%
B749883011.069619%
C7498710.946919%
D74981451.933849%

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 7634 7500 25 25 0.33% 0.33%
B 7633 7499 412 412 5.40% 5.49%
C 7634 7500 33 33 0.43% 0.44%
D 7634 7500 93 93 1.22% 1.24%

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 1 162 333123 1930.06 851 832 172.2
A 1 178 201989 1168.39 851 832 172.2
A 1 161 171235 989.76 851 832 172.2
B 4 239 1649085 10662.4 814 793 154.6
B 15 204 420849 2717.24 814 793 154.6
B 10 16 128229 824.35 814 793 154.6
C 15 208 195520 1027.59 825 826 189.5
C 4 175 27962 143.22 825 826 189.5
C 0 207 27209 139.25 825 826 189.5
D 13 104 288268 1461.29 820 794 196.7
D 2 33 155135 784.55 820 794 196.7
D 12 221 114772 579.37 820 794 196.7

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