ASTROSAT CZTI

Data Quality Report

Orbit 30576

Creation date: 2024-06-27T20:17:12.457435
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/AS1A10_053T23_9000004404_30576cztM0_level2.evt modeM0/AS1A10_053T23_9000004404_30576cztM0_level2_quad_clean.evt
Size (bytes)672,307,20078,819,840
Size641.2 MB 75.2 MB
Events in quadrant A3,759,437474,544
Events in quadrant B6,065,605471,374
Events in quadrant C3,881,241455,988
Events in quadrant D6,136,397451,989

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159723
B0238033
C0161933
D0233583

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76551802.351404%
B76553494.559112%
C76552503.265839%
D765578110.202482%

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 7760 7657 0 0 0.00% 0.00%
B 7760 7657 22 22 0.28% 0.29%
C 7760 7657 1 1 0.01% 0.01%
D 7760 7657 636 636 8.20% 8.31%

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 8 192 15405 73.6 970 949 196.4
A 13 254 13806 65.46 970 949 196.4
A 3 137 10162 46.91 970 949 196.4
B 6 159 2084580 11199.73 948 921 186.0
B 6 36 231119 1237.32 948 921 186.0
B 12 111 23120 119.32 948 921 186.0
C 14 238 147458 677.94 917 920 216.2
C 3 233 72641 331.81 917 920 216.2
C 0 10 29263 131.13 917 920 216.2
D 1 52 1922986 8712.26 917 889 220.6
D 12 227 342024 1546.26 917 889 220.6
D 13 104 159204 717.59 917 889 220.6

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