ASTROSAT CZTI

Data Quality Report

Orbit 08506

Creation date: 2024-06-27T15:33:37.507075
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/AS1G07_060T01_9000001200_08506cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08506cztM0_level2_quad_clean.evt
Size (bytes)434,698,56089,907,840
Size414.6 MB 85.7 MB
Events in quadrant A3,108,611570,133
Events in quadrant B3,424,038570,503
Events in quadrant C2,965,042567,224
Events in quadrant D3,216,058552,301

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139813
B0147382
C0136112
D0140242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6642691.038844%
B66421011.520626%
C6642250.376393%
D6642370.557061%

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 7662 6643 29 29 0.38% 0.44%
B 7662 6643 34 34 0.44% 0.51%
C 7662 6643 0 0 0.00% 0.00%
D 7662 6643 7 7 0.09% 0.11%

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 5 16 134206 848.99 771 751 157.2
A 13 251 7246 41.32 771 751 157.2
A 0 226 7124 40.54 771 751 157.2
B 4 81 149186 1013.58 771 753 146.4
B 10 16 95493 646.93 771 753 146.4
B 0 214 45595 306.2 771 753 146.4
C 13 61 5667 27.78 758 761 176.6
C 12 4 3702 16.65 758 761 176.6
C 8 222 3284 14.28 758 761 176.6
D 1 52 244497 1333.16 751 735 182.8
D 13 122 47887 257.88 751 735 182.8
D 9 64 26934 143.29 751 735 182.8

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