ASTROSAT CZTI

Data Quality Report

Orbit 33609

Creation date: 2024-06-27T20:50:44.902026
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/AS1T04_076T01_9000004810_33609cztM0_level2.evt modeM0/AS1T04_076T01_9000004810_33609cztM0_level2_quad_clean.evt
Size (bytes)585,083,52059,711,040
Size558.0 MB 56.9 MB
Events in quadrant A2,910,248367,071
Events in quadrant B4,884,905366,986
Events in quadrant C3,327,068369,869
Events in quadrant D6,228,261321,999

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121283
B0181152
C0133002
D0224072

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5455360.659945%
B545570512.923923%
C54551232.254812%
D545585915.747021%

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 7307 5456 22 22 0.30% 0.40%
B 7307 5456 523 523 7.16% 9.59%
C 7307 5456 85 85 1.16% 1.56%
D 7307 5456 853 853 11.67% 15.63%

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 15 237 142855 1007.98 703 688 141.0
A 15 169 21072 144.52 703 688 141.0
A 13 6 20554 140.85 703 688 141.0
B 5 172 1819634 14594.58 664 648 124.6
B 5 255 120928 965.06 664 648 124.6
B 0 214 53707 425.72 664 648 124.6
C 0 10 298352 1882.85 689 697 158.1
C 15 214 234199 1477.04 689 697 158.1
C 3 233 45338 282.38 689 697 158.1
D 1 52 1448072 8147.29 650 637 177.7
D 8 195 825940 4645.45 650 637 177.7
D 15 0 501431 2818.86 650 637 177.7

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