ASTROSAT CZTI

Data Quality Report

Orbit 44569

Creation date: 2024-06-27T23:04:03.349278
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/AS1A13_003T01_9000006002_44569cztM0_level2.fits modeM0/AS1A13_003T01_9000006002_44569cztM0_level2_quad_clean.evt
Size (bytes)1,580,060,160285,842,880
Size1.5 GB 272.6 MB
Events in quadrant A17,490,4621,885,442
Events in quadrant B8,834,4852,032,859
Events in quadrant C12,443,1621,866,553
Events in quadrant D18,268,9591,572,738

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03820
B03820
C03820
D03820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0671482
B0397032
C0499632
D0671562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1880413207.019783%
B188042491.324186%
C1880411366.041268%
D18803265814.136042%

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 19854 18806 1048 1048 5.28% 5.57%
B 19854 18805 72 72 0.36% 0.38%
C 19854 18805 1018 1018 5.13% 5.41%
D 19853 18803 2218 2218 11.17% 11.80%

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 10 83 4775140 11002.53 2090 2042 433.8
A 15 223 4286097 9875.23 2090 2042 433.8
A 13 248 220272 503.04 2090 2042 433.8
B 5 172 192175 457.89 2105 2039 415.2
B 5 235 172089 409.52 2105 2039 415.2
B 0 186 94703 223.16 2105 2039 415.2
C 15 208 1743896 3629.01 2028 2036 480.0
C 15 158 1509187 3140.02 2028 2036 480.0
C 14 254 797798 1657.9 2028 2036 480.0
D 2 249 4016272 8030.4 1967 1904 499.9
D 1 52 2700334 5397.98 1967 1904 499.9
D 13 174 2000497 3998.01 1967 1904 499.9

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