ASTROSAT CZTI

Data Quality Report

Orbit 04106

Creation date: 2024-06-27T14:37:29.648941
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/AS1G05_191T01_9000000524_04106cztM0_level2.evt modeM0/AS1G05_191T01_9000000524_04106cztM0_level2_quad_clean.evt
Size (bytes)526,564,80078,577,920
Size502.2 MB 74.9 MB
Events in quadrant A3,493,064487,565
Events in quadrant B3,736,972483,347
Events in quadrant C4,546,060465,146
Events in quadrant D3,703,442463,269

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146133
B0154632
C0180152
D0156612

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6895901.305294%
B68952012.915156%
C68953074.452502%
D68951902.755620%

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 8895 6895 6 6 0.07% 0.09%
B 8895 6895 103 103 1.16% 1.49%
C 8894 6894 115 115 1.29% 1.67%
D 8895 6895 113 113 1.27% 1.64%

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 50 107548 615.52 850 832 173.4
A 0 199 88540 505.89 850 832 173.4
A 0 226 16509 90.42 850 832 173.4
B 14 167 403170 2452.97 852 834 164.0
B 15 204 17627 102.38 852 834 164.0
B 12 111 14490 83.26 852 834 164.0
C 9 144 1370588 7241.44 812 820 189.2
C 13 61 6701 31.09 812 820 189.2
C 12 2 2638 9.61 812 820 189.2
D 10 172 476116 2405.68 814 791 197.6
D 13 223 50842 253.31 814 791 197.6
D 2 14 42379 210.48 814 791 197.6

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