ASTROSAT CZTI

Data Quality Report

Orbit 43914

Creation date: 2024-06-27T22:57:09.068324
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_009T02_9000005914_43914cztM0_level2.fits modeM0/AS1A13_009T02_9000005914_43914cztM0_level2_quad_clean.evt
Size (bytes)671,811,840121,602,240
Size640.7 MB 116.0 MB
Events in quadrant A6,297,009824,820
Events in quadrant B6,115,298791,165
Events in quadrant C5,291,783813,202
Events in quadrant D6,554,785704,964

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248340
B0233880
C0209420
D0248480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78713714.713505%
B787281010.289634%
C78722142.718496%
D78726658.447663%

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 7871 7871 203 203 2.58% 2.58%
B 7872 7872 653 653 8.30% 8.30%
C 7872 7872 157 157 1.99% 1.99%
D 7872 7872 529 529 6.72% 6.72%

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 15 223 1206636 6397.66 900 880 188.5
A 10 83 1179401 6253.15 900 880 188.5
A 15 222 224612 1187.11 900 880 188.5
B 5 235 2099876 12211.55 869 844 171.9
B 15 36 216679 1255.66 869 844 171.9
B 5 172 152205 880.57 869 844 171.9
C 15 158 912745 4404.98 876 878 207.0
C 3 233 775683 3742.87 876 878 207.0
C 14 254 94358 451.58 876 878 207.0
D 1 52 1155047 5182.53 864 831 222.7
D 12 233 513953 2303.96 864 831 222.7
D 4 234 261936 1172.38 864 831 222.7

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